Controlling complexity is the essence of computer programming.

Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.

Do what you think is interesting, do something that you think is fun and worthwhile, because otherwise you won't do it well anyway.

The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.

90% of the functionality delivered now is better than 100% delivered never.

C is a razor-sharp tool, with which one can create an elegant and efficient program or a bloody mess.

Don't document bad code - rewrite it.

... it is a fundamental principle of testing that you must know in advance the answer each test case is supposed to produce. If you don't, you are not testing; you are experimenting.

Believe the terrain, not the map

Each new user of a new system uncovers a new class of bugs.

If you had done something twice, you are likely to do it again.

Harness the power of today. Seize the blessings of today! Make something happen, enhance your life, make someone laugh, help a friend, love, love, love!

A lot of truth is said in jest.

It's incredibly important to me that my children don't put anything in their bodies that they haven't tested first - that's how you end up dying.

Life is short, art long, opportunity fleeting, experiment uncertain, and judgment difficult.

I know there are some actors who are just brilliant at improvising and brilliant at just being in the moment and doing it there and then. I'm not one of those actors.

I'm often moved by the circumstances around some of my characters, but I don't think I've actually cried watching myself.

I wish we had all been born birds instead.

I think Tom Paine is one of the greatest men that's ever lived.

Since baseball time is measured only in outs, all you have to do is succeed utterly; keep hitting, keep the rally alive, and you have defeated time. You remain forever young.