The main reason nerds are unpopular is that they have other things to think about. - Paul Graham

The most dangerous form of procrastination is unacknowledged type-B procrastination [putting off important things to do unimportant things], because it doesn't feel like procrastination. You're "getting things done." Just the wrong things.

A painting is never finished. You just stop working on it.” This idea will be familiar to anyone who has worked on software.

The power of established ideas is so great that even the most independent-minded people only rarely overcome it. The difference between independent-minded and conventional-minded people is that the former see past established ideas 1% of the time, and the latter 0%.