I always turn right because then I can't go wrong.

People who know little are usually great talkers, while men who know much say little.

Don't talk unless you can improve the silence.

Indeed, astrology is not a science at all, but merely a collection of superstitions and hokum that tries to use some of the terminology of astronomy but which rejects the logical thinking that is at the heart of science.

There's a responsibility in being a person. It's more than just taking up space where air would be.

Suppressing exceptions with empty catch blocks or printing them in arbitrary places is pure evil.

Testing can show the presence of errors, but not their absence.

I never think of the future - it comes soon enough.

We know it's morally wrong to copy and paste code once more, but no one's looking. /.../ If our geeky friends discover the duplicates, they'll no longer hang out with us. We need a better design: one that's DRY, one that'll make mothers proud.

Some things that the history of science has taught me; most coins have two sides, an M may be a W from opposite side, and an N may be a Z when viewed from another angle.

Without you, day is nothing but a waste of light.

Astronomy is science, astrology is nonsense.

One of the lessons of history is that nothing is often a good thing to do and always a clever thing to say.

Why worry about the Y10K problem if it is going to happen many centuries after your death? Exactly because you will already be dead, so the companies using your software will be stuck using your software without any other coder who knows the system well enough to come in and fix it.

We have two ears and one mouth so that we can listen twice as much as we speak.

Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.

There is no cure for stupidity.

Maybe this world is another planet's Hell.

The best code you can write is code that accomplishes something complex, but is inherently understood by those who examine your codebase.

May you walk in beauty.

We are all on this one spaceship together. We better start taking care of it.

No matter what happens to us this day, I will stand behind every decision that you make. However it goes, when we walk out of this room, we walk out of this room as a team.

We spend the first twelve months of our children's lives teaching them to walk and talk and the next twelve telling them to sit down and shut up.

Of those who say nothing, few are silent.

You look forward to the excitement of a race - it's like a punctuation mark at the end of a sentence.

Simplicity is the ultimate sophistication.

Agile is not a way to go fast. Agile is a way to know how screwed you are early.

This is your world, these are your people. You can live for yourself today, or help build tomorrow for everyone.

E pur si muove.

Programs must be written for people to read, and only incidentally for machines to execute.

Wise men talk because they have something to say; fools, because they have to say something.

There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult.

That's one small step for a man, one giant leap for mankind.

Try not to become a person of success, but rather try to become a person of value.

Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.

You can't change the world
But you can change the facts
And when you change the facts
You change points of view
If you change points of view
You may change a vote
And when you change a vote
You may change the world

War will cease when men refuse to fight.

Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction.

Computer science is no more about computers than astronomy is about telescopes.

You know, that I know, that we know, nothing at all.

Any fool can write code that a computer can understand. Good programmers write code that humans can understand.

Possunt nec posse videntur.

To be sure of hitting the target, shoot first, and call whatever you hit the target.