1.
When you see the sunlight for the first time after two weeks in the lab.
2.
When you're a PhD student and your thesis "needs major revisions".
3.
When you're a PhD student and your thesis passes.
4.
When you're a postdoc and your paper is rejected.
5.
When you're a postdoc and your paper is accepted.
6.
When you're a professor and your paper is rejected.
7.
When you're a professor and your paper is accepted.
8.
When you have to pull three all-nighters in a row to get your thesis in.
9.
When you press send on an email with the attachment thesis_final_version.doc.
10.
When your supervisor emails back with a "couple of tiny suggestions".
11.
When someone asks "when will you graduate from your PhD?"
12.
When you have to defend your thesis.
13.
When someone at your conference presentation goes on a 10-minute rant disguised as a question.
14.
When your P-value falls just outside significance.
15.
When your friend who has an actual job buys a house/car/expensive-looking sandwich.
16.
When your grant proposal gets accepted.
17.
When a reviewer calls your work "scientifically unsound".
18.
When you're marking undergrad essays.
19.
Writing an email to your professor, as a grad student.
20.
Replying to that email, as a professor.
21.
When the data supports your hypothesis.
22.
When the data supports your hypothesis if you sort of squint a bit.
23.
When the data… really doesn't.
