“Every man is the craftsman of his future, whether he hone it himself or allow fate do it.”

“Men do things. We can't help it. That's all there is to it. As you will discover in time, the primary choice every man has to make is whether he wants to be himself or if he wants peace.”

“Man, and in general every rational being, exists as an end in himself, not merely as a means for arbitrary use by this or that will: he must in all his actions, whether they are directed to himself or to other rational beings, always be viewed at the same time as an end.”

“That's how it is: even in the throes of death, man is always on stage. And even 'the plainest' of them, the least exhibitionist, because it's not always the man himself who climbs on stage. If he doesn't do it, someone will put him there. That is his fate as a man.”

“No man likes to acknowledge that he has made a mistake in the choice of his profession, and every man, worthy of the name, will row long against wind and tide before he allows himself to cry out, 'I am baffled!' and submits to be floated passively back to land.”

“Whether he sleeps or wakes, whether he runs or walks, whether he uses a microscope or a telescope, or his naked eye, a man never discovers anything, never overtakes anything or leaves anything behind, but himself. Whatever he says or does he merely reports himself. If he is in love, he loves; if he is in heaven, he enjoys, if he is in hell, he suffers. It is his condition that determines his locality.”