He who never made a mistake, never made a discovery.

My government will be open. Anyone found guilty of corruption will be dealt with in accordance with the law. If you are corrupt you will have to hang your boots.

Our greatest foes - and whom we must chiefly combat - are within.

Like religion, politics, and family planning, cereal is not a topic to be brought up in public. It's too controversial.

The secret of being a bore is to tell everything.

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.?

It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.

You always admire what you really don't understand.

A person preaches well that lives well.

External nature is only internal nature writ large.

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

Who are you to judge the life I live? I know I'm not perfect-and I don't live to be-but before you start pointing fingers... make sure your hands are clean!

I've got a woman's ability to stick to a job and get on with it when everyone else walks off and leaves it.

I am only one, but still I am one. I cannot do everything, but still I can do something; and because I cannot do everything, I will not refuse to do something that I can do.

Airplane travel is nature's way of making you look like your passport photo.

I think we're having fun. I think our customers really like our products. And we're always trying to do better.

For the meaning of life differs from man to man, from day to day and from hour to hour. What matters, therefore, is not the meaning of life in general but rather the specific meaning of a person's life at a given moment.

I want to put a ding in the universe.

Design is not just what it looks like and feels like. Design is how it works.

Forewarned, forearmed. To be prepared is half the victory.

Nothing is black or white.