“The day you stop learning is the day you begin decaying.”

It’s humbling to think that all animals, including human beings, are parasites of the plant world.

They won’t listen. Do you know why? Because they have certain fixed notions about the past. Any change would be blasphemy in their eyes, even if it were the truth. They don’t want the truth; they want their traditions.

Any teacher that can be replaced by a computer should be replaced by a computer.

Education isn’t something you can finish.

Anything you make forbidden gains sexual attractiveness. Would you be particularly interested in women’s breasts if you lived in a society in which they were displayed at all times?

Life is pleasant. Death is peaceful. It’s the transition that’s troublesome.

I figure that if God actually does exist, he is big enough to understand an honest difference of opinion.

The cure for advanced gullibility is to go to sleep and consider matters again the next day.

I do not fear computers. I fear the lack of them.

I don’t subscribe to the thesis, ‘Let the buyer beware,’ I prefer the disregarded one that goes, ‘Let the seller be honest.’

The intelligent man is never bored.

If knowledge can create problems, it is not through ignorance that we can solve them.

Better to make a good future than predict a bad one.

You don’t have to be able to lay eggs to know when one of them is rotten.

There is no belief, however foolish, that will not gather its faithful adherents who will defend it to the death.

Any fool can tell a crisis when it arrives. The real service to the state is to detect it in embryo.