Once you label me you negate me.

Any product that needs a manual to work is broken.

If the only prayer you said was thank you, that would be enough.

External nature is only internal nature writ large.

The word 'good' has many meanings. For example, if a man were to shoot his grandmother at a range of five hundred yards, I should call him a good shot, but not necessarily a good man.

Three may keep a secret, if two of them are dead.

By seeing London, I have seen as much of life as the world can show.

Human decency is not derived from religion. It precedes it.

I love deadlines. I like the whooshing sound they make as they fly by.

After all, science is essentially international, and it is only through lack of the historical sense that national qualities have been attributed to it.

Enthusiasm... the sustaining power of all great action.

I am not a saint, unless you think of a saint as a sinner who keeps on trying.

Liberty, according to my metaphysics is a self-determining power in an intellectual agent. It implies thought and choice and power.

But there is only one thing which gathers people into seditious commotion, and that is oppression

A difference of opinion is what makes horse racing and missionaries.

Being unwanted, unloved, uncared for, forgotten by everybody, I think that is a much greater hunger, a much greater poverty than the person who has nothing to eat.

I have only ever read one book in my life, and that is White Fang. It's so frightfully good I've never bothered to read another.

I am not now That which I have been.

A book is a mirror: if an ape looks into it an apostle is hardly likely to look out.

Genius is sorrow's child.

If you never stop when you wave goodbye you just might find, if you give it time, you will wave hello again...