The real solution lies in a world in which charity will have become unnecessary.

Know what you are talking about.

A child educated only at school is an uneducated child.

Dare to think for yourself.

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

A child miseducated is a child lost.

The books that the world calls immoral are books that show the world its own shame.

Industrialize or perish.

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.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.

Human behavior flows from three main sources: desire, emotion, and knowledge

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

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

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

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

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

What sculpture is to a block of marble, education is to a human soul.

Knowing others is wisdom, knowing yourself is Enlightenment.

The progressive development of man is vitally dependent on invention.

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

No power and no treasure can outweigh the extension of our knowledge.