Humans are just a very, very small part of the panoply of life, and it is arguable that in a certain sense, humans have emancipated themselves from Darwinian selection.

Much as we might wish to believe otherwise, universal love and the welfare of the species as a whole are concepts which simply do not make evolutionary sense.

Do not indoctrinate your children. Teach them how to think for themselves, how to evaluate evidence, and how to disagree with you.

Faith is belief without evidence and reason; coincidentally that's also the definition of delusion.

Evolution is just a theory? Well, so is gravity and I don't see you jumping out of buildings.

Such delusions of grandeur to think that a God with a hundred billion galaxies on his mind would give a tuppenny damn who you sleep with, or indeed whether you believe in him.

The less you think, the more you believe.

How thoughtful of God to arrange matters so that, wherever you happen to be born, the local religion always turns out to be the true one.

The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.

Science is the poetry of reality.

The theory of evolution by cumulative natural selection is the only theory we know of that is in principle capable of explaining the existence of organized complexity.

Let us be grateful to the people who make us happy

The strongest men are the most alone.

The world is mud-luscious and puddle-wonderful.

Think in the morning. Act in the noon. Eat in the evening. Sleep in the night.

The coffee was boiling over a charcoal fire, and large slices of bread and butter were piled one upon the other like deals in a lumber yard.

It is undoubtedly true, though it may seem paradoxical,--but, in general, those who are habitually employed in finding and displaying faults are unqualified for the work of reformation.

An ignorance of Marx is as frequent among Marxists as an ignorance of Christ is among Catholics.

Love is the only force capable of transforming an enemy into friend.

I've never particularly liked travelling with large groups or being told where to go by somebody else. I prefer to find out for myself.

Your life, your soul, your world. They cannot kill it. Look at me, I’ve died but I opened my eyes again.