Dare to think for yourself.

That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.

Better know nothing than half-know many things.

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

No man's knowledge here can go beyond his experience.

The most savage controversies are those about matters as to which there is no good evidence either way.

To educate a person in the mind but not in morals is to educate a menace to society.

Common sense is the collection of prejudices acquired by age eighteen.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

The task of a writer is not to solve the problem but to state the problem correctly.

Real knowledge is to know the extent of one's ignorance.

A child educated only at school is an uneducated child.

Any sufficiently advanced technology is indistinguishable from magic.

Don't learn to do, but learn in doing.

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

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.

There is no authority who decides what is a good idea.

What is now proved was once only imagined.

A child miseducated is a child lost.