I called my cat William because no shorter name fits the dignity of his character. Poor old man, he has fits now, so I call him Fitz-William.

Laughter is the fireworks of the soul.

A dog is the only thing on earth that loves you more than you love yourself.

Health is like money, we never have a true idea of its value until we lose it.

The miser and the glutton are two facetious buzzards: one hides his store, and the other stores his hide.

Never work before breakfast; if you have to work before breakfast, eat your breakfast first.

Be like a postage stamp. Stick to one thing until you get there.

Consider the postage stamp: its usefulness consists in the ability to stick to one thing till it gets there.

The wheel that squeaks the loudest is the one that gets the grease.

Love looks through a telescope; envy, through a microscope.

The happiest time in any man's life is when he is in red-hot pursuit of a dollar with a reasonable prospect of overtaking it.

To reveal your greatness, see the greatness in everyone. Ignore pettiness and forgive everyone.

If a picture is worth a thousand words, why did God invent captions?

I never leave anything behind. It's like a history, a chain, a line of life, you just have to move and make new steps, and keep it evolving - but my soul is my soul.

When it's all over, it's not who you were ... it's whether you made a difference.

Theorems are fun especially when you are the prover, but then the pleasure fades. What keeps us going are the unsolved problems.

I'm not taking any interest in politics. I'm not involved in politics in any way. My life is in writing now.

The whole pleasure of being in a state of unknowing is that as long as you don’t know, all possible outcomes feel as if they are happening.

If I have to climb to heaven on a ladder, I shall decline the invitation.

Is it not a noble farce, wherein kings, republics, and emperors have for so many ages played their parts, and to which the whole vast universe serves for a theatre?