A heresy can spring only from a system that is in full vigor.

In a time of drastic change, it is the learners who inherit the future.

An empty head is not really empty; it is stuffed with rubbish. Hence the difficulty of forcing anything into an empty head.

Unlimited opportunities can be as potent a cause of frustration as a paucity or lack of opportunities.

It is not actual suffering but the taste of better things which excites people to revolt.

To become different from what we are, we must have some awareness of what we are.

A great man's greatest good luck is to die at the right time.