Necessity is the mother of invention.

It is what you read when you don't have to that determines what you will be when you can't help it.

Education is the most powerful weapon which you can use to change the world.

I cannot teach anybody anything. I can only make them think

If I have seen further it is by standing on the shoulders of Giants.

The schools ain't what they used to be and never was.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

Better know nothing than half-know many things.

If there were no bad people, there would be no good lawyers.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

Many much-learned men have no intelligence.

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

Free the child's potential, and you will transform him into the world.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.

The only good is knowledge and the only evil is ignorance.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

I decided to teach because I think that any person who studies philosophy has to be involved actively.