Understanding is always the understanding of a smaller problem in relation to a bigger problem.

Many things are mechanical and should remain mechanical. But mechanical thoughts, mechanical feelings—that is what has to be studied and can and should be changed. Mechanical thinking is not worth a penny. You can think about many things mechanically, but you will get nothing from it.

When one realises one is asleep, at that moment one is already half-awake.

If a man gives way to all his desires, or panders to them, there will be no inner struggle in him, no 'friction,' no fire. But if, for the sake of attaining a definite aim, he struggles with desires that hinder him, he will then create a fire which will gradually transform his inner world into a single whole.

There is something in us that keeps us where we find ourselves. I think this is the most awful thing of all.

One cannot keep all old views and opinions and acquire new ones.

I have become so accustomed to think "scientifically" that I am afraid even to imagine that there may be something else beyond the outer covering of life. I feel like a man condemned to death, whose companions have been hanged and who has already become reconciled to the thought that the same fate awaits him.