One of man's important mistakes, one which must be remembered, is his illusion in regard to his I. Man such as we know him, the 'man-machine,' the man who cannot 'do,' and with whom and through whom everything 'happens,' cannot have a permanent and single I. His I changes as quickly as his thoughts, feelings and moods, and he makes a profound mistake in considering himself always one and the same person; in reality he is always a different person, not the one he was a moment ago.

It is the greatest mistake to think that man is always one and the same. A man is never the same for long. He is continually changing. He seldom remains the same even for half an hour.

Only super-efforts count.

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

A man must first of all understand certain things. He has thousands of false ideas and false conceptions, chiefly about himself, and he must get rid of some of them before beginning to acquire anything new. Otherwise the new will be built on a wrong foundation and the result will be worse than before. To speak the truth is the most difficult thing in the world; one must study a great deal and for a long time in order to speak the truth. The wish alone is not enough. To speak the truth one must know what the truth is and what a lie is, and first of all in oneself. And this nobody wants to know.

If a man could understand all the horror of the lives of ordinary people who are turning around in a circle of insignificant interests and insignificant aims, if he could understand what they are losing, he would understand that there can only be one thing that is serious for him - to escape from the general law, to be free. What can be serious for a man in prison who is condemned to death? Only one thing: How to save himself, how to escape: nothing else is serious.

We must strive for freedom if we strive for self-knowledge. The task of self-knowledge and of further self-development is of such importance and seriousness, it demands such intensity of effort, that to attempt it any old way and amongst other things is impossible. The person who undertakes this task must put it first in his life, which is not so long that he can afford to squander it on trifles.