Human life is so strangely constituted that even perfected intellectual understanding combined with the richest experience is incapable of conquering innate weaknesses. Even if it thoroughly analyzes itself, psychology (and this is one of the dubious aspects of psychoanalysis) can, to be sure, recognize its flawed native characteristics, but it cannot eliminate them. Understanding (them) is not the same as overcoming (them) and, again and again, we see the wisest of human beings helpless in the fact of their small follies which everyone else observes with a smile.

Memory is so corrupt that you remember only what you want to; if you want to forget about something, slowly but surely you do.

But nothing is better than a truth which appears not to have the semblance of truth. There is always something incomprehensible about the great heroic deeds performed by humanity because they rise so far beyond the mediocre measure of mere mortals; but it is always only because of the incredible feats that human beings have accomplished that humanity recovers its faith in itself.

There are two types of compassion. One - is faint-hearted and sentimental. Actually, it is nothing more than impatience of the heart, that is hurrying to get rid of that hard feeling when you see other peoples' sufferings; this is not a compassion, but just an instinct will to defence yourself from misfortunes of others. But there is another compassion - real one, that demands for actions, not sentiments, it knows what it wants, and it is full of determination to do everything, what is in human power and even beyond it.

Decisive inventions and discoveries always are initiated by an intellectual or moral stimulus as their actual motivating force, but, usually, the final impetus to human action is given by material impulses ... merchants stood as a driving force behind the heroes of the age of discovery; this first heroic impulse to conquer the world emanated from very mortal forces

In history as in human life, regret does not bring back a lost moment and a thousand years will not recover something lost in a single hour.

(Heinrich von) Kleist would not be a Prussian if his first thought would not have been orderlinessand he would not be a German if he had not placed all his hopes of developing this inner orderliness into education. Education is the secret of life for him as for every German: studying, learning a lot from books, sitting in lectures, keeping notebooks, listening intently to professors.