I am indebted to my father for living, but to my teacher for living well.

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

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

With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.

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

If the facts don't fit the theory, change the facts.

I am so clever that sometimes I don't understand a single word of what I am saying.

Show me a family of readers, and I will show you the people who move the world.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

As we acquire more knowledge, things do not become more comprehensible but more mysterious.

There is nothing more awful, insulting, and depressing than banality.

Knowledge, Action, Devotion are complementary to each other.

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

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

We could never learn to be brave and patient, if there were only joy in the world

It is possible to fly without motors, but not without knowledge and skill.

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

Investigate, educate and organize.

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

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.

Industrialize or perish.