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.

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

Knowledge can be acquired by a suitable and complete study, no matter what the starting point is. Only one must know how to "learn." What is nearest to us is man; and you are the nearest of all men to yourself. Begin with the study of yourself; remember the saying "Know thyself."

Meat is necessary when there is hard physical work to be done, or in a very cold climate, or when edible plants cannot be found...Animal flesh provides all the substances we need, both for the intensive working of our organism and for maintaining a normal temperature in cold climates.

Every grown-up man consists wholly of habits, although he is often unaware of it and even denies having any habits at all.

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

Let us take some event in the life of humanity. For instance, war. There is a war going on at the present moment. What does it signify? It signifies that several millions of sleeping people are trying to destroy several millions of other sleeping people. They would not do this, of course, if they were to wake up. Everything that takes place is owing to this sleep.