The falsification of history has done more to impede human development than any one thing known to mankind.

It is hard to prevent oneself from believing what one so keenly desires, and who can doubt that the interest we have in admitting or denying the reality of the Judgement to come determines the faith of most men in accordance with their hopes and fears.

This dog, which, although no beauty, was of an uncommon breed, I had made my friend and companion; and it certainly deserved the name better than the majority of those who had assumed it.

I had been brought up in a church which decides everything and permits no doubts, so that having rejected one article of faith I was forced to reject the rest.

To be sane in a world of madman is in itself madness.

Chemistry... is like the maid occupied with daily civilisation; she is busy with fertilisers, medicines, glass, insecticides ... for she dispenses the recipes.

To live is not breathing it is action.