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

The direction in which education starts a man will determine his future in life

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

The fullness of knowledge only comes through the awareness of ignorance.

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

Books are as useful to a stupid person as a mirror is useful to a blind person.

A thought is an idea in transit.

Evil being the root of mystery, pain is the root of knowledge.

I learned very early the difference between knowing the name of something and knowing something.

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

I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.

The white man is very clever. He came quietly and peaceably with his religion. We were amused at his foolishness and allowed him to stay. Now he has won our brothers, and our clan can no longer act like one. He has put a knife on the things that held us together and we have fallen apart.

Science is what we have learned about how to keep from fooling ourselves.

The more I read, the more I acquire, the more certain I am that I know nothing.

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

The only true wisdom is in knowing you know nothing.

A cynic is a man who knows the price of everything, and the value of nothing.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

To every action there is always an equal and opposite or contrary, reaction

The great difficulty in education is to get experience out of ideas.

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