[Referring to Fourier's mathematical theory of the conduction of heat] ... Fourier's great mathematical poem.

If you can not measure it, you can not improve it.

If you study science deep enough and long enough, it will force you to believe in God.

Heavier-than-air flying machines are impossible.

Can you measure it? Can you express it in figures? Can you make a model of it? If not, your theory is apt to be based more upon imagination than upon knowledge.

When you are face to face with a difficulty, you are up against a discovery.

In science there is only physics; all the rest is stamp collecting.

Radio has no future." "X-rays are clearly a hoax". "The aeroplane is scientifically impossible.

When you can measure what you are speaking about, and express it in numbers, you know something about it.

To measure is to know.

Large increases in cost with questionable increases in performance can be tolerated only in race horses and fancy women.

His boat sank. They were all on his side.

Never let me hear you say it's someone else's fault. It often is, but you must never shirk your own responsibility ... You can't change others, but you can do something about a fault in yourself.

Learning to think rigorously, so as to act rightly and to serve humanity better.

I pray to God I get inside a girl's head one day and see what in the WORLD they are thinking.

A policy of life insurance is the cheapest and safest mode of making a certain provision for one's family.

As soon as we abandon our own reason, and are content to rely upon authority, there is no end to our troubles.

There's a rebel lying deep in my soul.

I am like a broken puppet whose eyes have fallen inside.

No woman who understands the gospel would ever think that any other work is more important or would ever say, "I am just a mother," for mothers heal the souls of men.

It always comes down to what the crowd buys coming out of your mouth, which differs from one comic to the next.