It is only through imagination that men become aware of what the world might be; without it, ‘progress’ would become mechanical and trivial.

The good life is one inspired by love and guided by knowledge.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

The time you enjoy wasting is not wasted time.

Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom.

Men are born ignorant, not stupid. They are made stupid by education.

An Honest politician will not be tolerated by a democracy unless he is very stupid ... because only a very stupid man can honestly share the prejudices of more than half the nation.

If there were in the world today any large number of people who desired their own happiness more than they desired the unhappiness of others, we could have a paradise in a few years.

We have in fact, two kinds of morality, side by side: one which we preach, but do not practice, and another which we practice, but seldom preach.

The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd.

Cruel men believe in a cruel god and use their belief to excuse their cruelty. Only kindly men believe in a kindly god, and they would be kindly in any case.

The Lord weighs the motive of every heart.

Pessimist - one who when he has the choice of two evils chooses both.

It is impossible to keep a straight face in the presence of one or more kittens.

The good news is world population growth rate decreases systematically and is expected to reach zero by 2050, thanks to urbanisation and women's education.

The road can be hard on a kid if he's not careful.

There is no beginning too small.

More was revealed in a human face than a human being can bear face to face.

If we have the power to turn another planet into Earth, then we have the power to turn Earth back into Earth.

The SAS is the most elite of the special forces in the world. They are not people who go out and advertise; they keep it inside. They don't want anybody to know about them.