All the conditions of happiness are realized in the life of the man of science.

I FIND IT SO DIFFICULT NOT TO HATE, WHEN I DO NOT HATE I FEEL WE FEW ARE SO LONELY IN THE WORLD

And all this madness, all this rage, all this flaming death of our civilization and our hopes, has been brought about because a set of official gentlemen, living luxurious lives, mostly stupid, and all without imagination or heart, have chosen that it should occur rather than that any one of them should suffer some infinitesimal rebuff to his country`s pride.

What men really want is not knowledge but certainty.

I am myself a dissenter from all known religions, and I hope that every kind of religious belief will die out.

Orthodoxy is the death of intelligence.

The puritanism of Christianity has played havoc with the moderation that an enlightened and tolerant critical spirit would have produced. I've noticed that in whatever country, county, town, or other region there is a regulation enjoining temperance, the population seems to be entirely composed of teetotallers and drunkards. There's a Bible on that shelf there. But I keep it next to Voltaire - poison and antidote.