Imagine a circle that contains all of human knowledge:

By the time you finish elementary school, you know a little:

By the time you finish high school, you know a bit more:

With a bachelor's degree, you gain a specialty:

A master's degree deepens that specialty:

Reading research papers takes you to the edge of human knowledge:

Once you're at the boundary, you focus:

You push at the boundary for a few years:

Until one day, the boundary gives way:

And, that dent you've made is called a Ph.D.:

Of course, the world looks different to you now:

So, don't forget the bigger picture:

Keep pushing.
Related posts
- Recommended reading for grad students.
- How to get into grad school.
- Advice for thesis proposals.
- Productivity tips for academics.
- Academic job hunt advice.
- Successful Ph.D. students: Perseverance, tenacity and cogency.
- The CRAPL: An open source license for academics.
Resources
- A slideshow version in PDF.
- French translation: C'est quoi un doctorat? (by Pierre Poulin)
via matt.might.net
 Terrific.
