The history of the race is but that of the individual "writ large".

Books minister to our knowledge, to our guidance, and to our delight, by their truth, their uprightness, and their art.

Science is the systematic classification of experience.

Originality is independence, not rebellion; it is sincerity, not antagonism.

It is unhappily true that much insincere Literature and Art, executed solely with a view to effect, does succeed by deceiving the public.

No man ever made a great discovery without the exercise of the imagination.

We must never assume that which is incapable of proof.

The true function of philosophy is to educate us in the principles of reasoning and not to put an end to further reasoning by the introduction of fixed conclusions.

Insincerity is always weakness; sincerity even in error is strength.

To write much, and to write rapidly, are empty boasts. The world desires to know what you have done, and not how you did it.

Good writers are of necessity rare.

It always gives me a shiver when I see a cat seeing what I can't see.

To many people dramatic criticism must seem like an attempt to tattoo soap bubbles.

A life of action and danger moderates the dread of death. It not only gives us fortitude to bear pain but teaches us at every step the precarious tenure on which we hold our present being.

I have always been interested in innovation but I was never able to find innovation inside of disciplinary boundaries.

You can get by on charm for about 15 minutes. After that, you better know something.

Maturity comes in three stages: dependence, independence and interdependence

Everyone has a moment in history which belongs particularly to him.

My ambitions were already very clearly fixed by the time I was 6 or 7.

It's a bit like walking down a long, dark corridor never knowing when the light will go on.

I told my dentist I want a tooth to match the others. He gave my one with four cavities.