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.

Fourier is a mathematical poem.

A couple in love is like a pair of scissors. Two useless pieces of metal, until they are inextricably connected at the core so that they can move together as one and accomplish great things.

To be a human being means to be lonely.To go on becoming a person means exploring new modes of resting in our loneliness.

Every sentence I utter must be understood not as an affirmation but as a question.[A caution he gives his students, to be wary of dogmatism.]

I want to make people cry even when they don't understand my words.

The fragrance of sandalwood and rosebay does not travel far. But the fragrance of virtue rises to the heavens.

We've been able to access deals that under our former relationship with Disney - with tax advantages and strategic partners - that we just weren't able to do.

There is one thought for the field, another for the house. I would have my thoughts, like wild apples, to be food for walkers, and will not warrant them to be palatable if tasted in the house.

Life is a puzzle. Every piece fits together to create who we are, what we do, how we feel. Every experience shapes us into who we will eventually become.

A treasure of memories is a very special happiness.

It's extremely difficult to come across quality material. It's a competitive world.