It at once struck me that under these circumstances favourable variations would tend to be preserved, and unfavourable ones to be destroyed.

The love for all living creatures is the most noble attribute of man.

A man who dares to waste one hour of time has not discovered the value of life.

The world will not be inherited by the strongest, it will be inherited by those most able to change.

Nothing exists for itself alone, but only in relation to other forms of life

Building a better mousetrap merely results in smarter mice.

A mathematician is a blind man in a dark room looking for a black cat which isn't there.

An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men.

It is not the biggest, the brightest or the best that will survive, but those who adapt the quickest.

We can allow satellites, planets, suns, universe, nay whole systems of universes, to be governed by laws, but the smallest insect, we wish to be created at once by special act.

What a book a devil's chaplain might write on the clumsy, wasteful, blundering, low, and horribly cruel work of nature!

Play to win, not "not to lose".

. You must know the area of your calling. If you do not know, then pray about it

Your battles inspired me - not the obvious material battles but those that were fought and won behind your forehead.

In the end, it was the secrets that held me hostage and fuelled my depression, but, once released, emancipation - from fear, shame, guilt and judgement - was finally possible.

The secret to success in any human endeavor is total concentration.

I can write all the way through the morning, when my mind is clear, and there are no distractions.

There is an animal inside me, clutching fast to my heart, a huge crab.

When you act, you really have to give all of yourself, and if you're doing that purely for money, it's not healthy.

"See," Sasha muttered, eyeing the sun. 'It's mine."

The act of writing... is the act of trying to understand why my opinion is what it is. And ultimately, I think that's the same experience the reader has when they pick up one of my books.