Circumstances do not make the man, they reveal him.

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

The joke of our time is the suicide of intention.

Everything is vague to a degree you do not realize till you have tried to make it precise.

A scientist in his laboratory is not a mere technician: he is also a child confronting natural phenomena that impress him as though they were fairy tales.?

I must not write a word to you about politics, because you are a woman.

Of puns it has been said that those who most dislike them are those who are least able to utter them.

A lie never lives to be old.

A mediocre idea that generates enthusiasm will go further than a great idea that inspires no one.

The idea of freedom is inspiring. But what does it mean? If you are free in a political sense but have no food, what's that? The freedom to starve?

That which can be asserted without evidence, can be dismissed without evidence.

Effective action is always unjust.

Pain is inevitable. Suffering is optional.

Do it again on the next verse, and people think you meant it.

It is a good rule in life never to apologize. The right sort of people do not want apologies, and the wrong sort take a mean advantage of them.

An original idea. That can't be too hard. The library must be full of them.

Sunlight is painting.

The secret of being a bore is to tell everything.

Animals, whom we have made our slaves, we do not like to consider our equal.

Modesty and conscientiousness receive their reward only in novels. In life they are exploited and then shoved aside.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.