The highest that a man can attain is to be able to do.

By teaching others you will learn yourself.

Without self knowledge, without understanding the working and functions of his machine, man cannot be free, he cannot govern himself and he will always remain a slave.

To know all, it is necessary to know very little; but to know that very little, one must first know pretty much.

Man must use what he has, not hope for what is not.

One of the best means for arousing the wish to work on yourself is to realize that you may die at any moment. But first you must learn how to keep it in mind.

Every ceremony or rite has a value if it is performed without alteration. A ceremony is a book in which a great deal is written. Anyone who understands can read it. One rite often contains more than a hundred books.