You can't replace reading with other sources of information like videos, because you need to read in order to write well, and you need to write in or… - Paul Graham

Implementing something doesn't guarantee that you understand it, but it's among the best evidence that you do.

It's important for nerds to realize, too, that school is not life. School is a strange, artificial thing, half sterile and half feral. It's all-encompassing, like life, but it isn't the real thing. It's only temporary, and if you look, you can see beyond it even while you're still in it.

don't feel like you're doomed to fail if you're not sure on day 1 that you want to be running a public company. Not being sure of that is if anything a sign of sanity.