Not All Those Who Wander Are Lost.

"The mind is not a vessel that needs filling, but wood that needs igniting."
— Plutarch

A PhD is an enormous investment as well as commitment in your prime years. The prestige that comes with the PhD degree leads many students to treat it as a destination in itself, where the goal is the defense, the degree, the title, and the privilege of being able to add “PhD” after their names. I would say this is a very common trap, often too subtle to be realized by junior researchers, because the approach you take toward this destination looks like ambition: you work hard, you persist, you hit the milestones one after another, and you assume that completing the PhD program will naturally lead somewhere good.

The problem is, “somewhere good” is not a direction. It is a hope, and hope without a direction produces a graduate who has a degree and no idea what to do with it.

What Does a PhD Actually Mean?

I frame the PhD to every student I work with just as a training period. If you think you are here to accumulate publications, do you believe that you will publish more papers during your PhD than during the entire career that follows it? I want to delineate the purpose clearly: you are here to develop the capacity to do independent research, to think critically about complex problems, to communicate your ideas clearly, and to understand yourself well enough to know where you want to aim that capacity.

So what does the PhD degree mean? The degree is just the certification that you have completed the basic requirements of the training, just as a medical residency certifies that a doctor is ready to practice. No one finishes a residency and says “I have arrived at my destination.” They say “I am now prepared to begin.” I highlight “basic requirements” because you cannot tell if one PhD graduate is more insightful than another purely from the title, since the title is exactly the same, even though the people could be fundamentally different.

And maybe disappointing to many of you, PhD means literally nothing in your daily life. You will not be wearing a name tag with “PhD” or a graphic tee with “I am a PhD” everywhere; you will not be telling a clerk at the bank or the front desk at a hotel that they should refer to you as “Dr.” I would even suggest that you specifically avoid putting “Dr.” in your airline account profile, because if there is any medical emergency onboard, you do not really want to be asked to help and then have to tell them you are not a real “Doctor” doctor. If you work in academia, you will find out that people do refer to others as “Dr.” to show respect, but, in the meantime, everyone does so to everyone else because everyone has a PhD degree. Funny, huh?

PhD as a Path, Not a Destination

If you internalize this framing early, it changes how you make decisions throughout the PhD. When a new project opportunity appears, you ask “does this develop a skill or connection I want to carry forward?” and not just “can I get a paper from this?” When you choose a research direction, you ask “does this build toward something I want to sustain for years?” and not just “is this publishable by the next deadline?” When you invest time in mentoring a junior student, reviewing for a conference, or learning a new methodology, you recognize those as part of the training even though they do not produce a line on your CV, and even if they do, it does not matter.

The tenth question in Olson’s motivation chain (which you will encounter later in this series) asks “what are you going to be doing in 5 years?”, and I mention it here because it is the question that should sit above all the others from the start. A single paper exists within a larger trajectory, and every project you take on during the PhD is either helping you explore the unknown space, moving you toward a direction you have chosen, or drifting you somewhere you did not intend.

The direction does not need to be a detailed plan. It needs to be an honest answer to a few questions: do I want to stay in academic research, go into industry research, or leave research entirely? What kinds of problems do I want to spend my time on? What skills am I building that will serve me wherever I go? What am I learning about myself, about what energizes me and what drains me, that should inform the choices I make next?

Luckily, you do not need to finalize an answer today, as you will, I promise, change your mind many times throughout the PhD training. I have seen students who never asked these questions graduate with strong publication records and then spend a year paralyzed by the decision of what to do next, because they optimized for the short-term metric (papers) without building the self-knowledge that would tell them where to aim. I have also seen students who asked these questions early, sometimes in their first year, make decisions throughout the PhD that accumulated into a coherent trajectory, and by the time they graduated, the next step was obvious because every prior step had been building toward it, or vice versa, they suddenly figured out that something they initially thought they would never enjoy now generates most of their joy.

Three Capacities That Outlast the Degree

One thing I want to be honest about is that the person who enters the PhD and the person who finishes it are rarely the same. The training changes how you think, what you value, what you find interesting, and how you relate to the people around you, which is the entire point of the training.

Over the course of your PhD, you will develop many capacities that extend far beyond the lab, and I want to emphasize three of them specifically.

The first is effective methodologies for learning new things: how to search for information, how to evaluate the quality of what you find, how to build understanding from the ground up, and how to identify when your knowledge has gaps. The second is a critical thinking habit that applies to everything you think and do: the ability to question assumptions, trace reasoning, identify evidence, and notice when an argument has a hole in it. The third is the self-awareness to know what genuinely interests you and what does not: the clarity to distinguish between something you are pursuing because you care about it and something you are pursuing because other people do.

These three capacities matter substantially beyond research. In fact, the most productive and creative researchers I have met do not live a life that only has research. They typically have hobbies, often several, and they are genuinely good at them. Some are deeply into cuisine and can tell you how a specific regional dish was historically prepared and what separates a good version from a mediocre one. Some are serious about investing, and the way they analyze a company makes you feel like you are talking to a professor in the business department. The commonality is not the hobby itself, but the approach: they learned how to learn during their research training, and they carry that capacity into everything they care about.

What Matters

If you ask me what I would expect of PhD graduates, the answer is definitely NOT a number of publications, citations, or academic achievements. From a lifelong perspective, those metrics lose their weight quickly.

Think about it. If you leave academia, your industry career will not be defined by how many papers you published during the PhD. If you stay, you will eventually have hundreds of publications, and whether you had seven or ten during the PhD will be entirely irrelevant. What really matters is whether you become a person who thinks critically, knows what they care about, can teach themselves anything they want to learn, and carries a depth of awareness that shapes every decision they make.

The PhD also provides something that is easy to overlook in the middle of the stress: protected time for self-discovery. You do not need to worry about losing your job if you cannot deliver what a manager asks for next week. You are not navigating complicated office politics. You are not chasing unrealistic expectations of getting rich quickly. These pressures are constant stimuli for people in industry, and they are noise that PhD students are largely free from. When you are free from that noise, you have what may be the best opportunity in your adult life to think about what you really want to do, what matters to you, why, and why not.

What catches some students off guard is that the change also affects what they want. A student who entered the PhD planning to become a professor may discover that they care more about building products. A student who entered planning to go into industry may discover that they cannot imagine leaving research. The PhD is helping you discover what the destination should be, and that self-knowledge is the most durable thing you will take away.

What Lasts

The PhD is a phase, and the phase will end. The publications will be absorbed into a career that will eventually have hundreds of them. The citations will accumulate long after you stop checking. The rejections that felt devastating will become stories you tell junior students to make them feel better. What will remain is the person you became during the training: the way you think, the way you learn, the way you treat the people you work with, and the clarity you developed about what matters to you and what does not.

Invest in that person. The rest follows.