Science is built up with facts, as a house is with stones. But a collection of facts is no more a science than a heap of stones is a house.

Point set topology is a disease from which the human race will soon recover.

It is by logic that we prove, but by intuition that we discover. To know how to criticize is good, to know how to create is better.

There are no solved problems; there are only problems that are more or less solved.

The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful.

Doubt everything or believe everything: these are two equally convenient strategies. With either we dispense with the need for reflection.

If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living

It is through science that we prove, but through intuition that we discover.

Geometry is the art of correct reasoning from incorrectly drawn figures.

One geometry cannot be more true than another; it can only be more convenient.

It is far better to foresee even without certainty than not to foresee at all.

Oh, how hard it is to part with power! This one has to understand.

Think much, say little, do much.

Honesty is the best policy. But insanity is a hell of a lot more effective in court. So your set, McMullen

Hard roads are not opened by themselves

I am so imperfect, can you love me when really my soul is deformed? Will you love me anyhow?

The problem with doing a schlocky or big budget studio film is that it wouldn't actually be fun for me. It wouldn't be exciting.

There's no such thing as a bad dog, just a bad owner.

Only fools seek power, and the greatest fools seek it through force.

When people talk to me about the weather, I always feel they mean something else.

Thou dost conspire against thy friend, Iago, If thou but think'st him wronged, and mak'st his ear A stranger to thy thoughts.