You can be sincere and still be stupid.

Life is in ourselves and not in the external.

If you can put the question, 'Am I or am I not responsible for my acts?' then you are responsible.

For example, I'm terribly proud. I'm as mistrustful and as sensitive as a hunchback or a dwarf; but, in truth, I've experienced some moments when if someone had slapped my face, I might even have been grateful for it. I'm being serious. I probably would have been able to derive a peculiar sort of pleasure from it-the pleasure of despair, naturally, but the most intense pleasures occur in despair, especially when you're very acutely aware of the hopelessness of your own predicament.

We must never forget that human motives are generally far more complicated than we are apt to suppose, and that we can very rarely accurately describe the motives of another.

And in vain does the dreamer rummage about in his old dreams, raking them over as though they were a heap of cinders, looking into these cinders for some spark, however tiny, to fan it into a flame so as to warm his chilled blood by it and revive in it all that he held so dear before, all that touched his heart, that made his blood course through his veins, that drew tears from his eyes, and that so splendidly deceived him!

Man, do not pride yourself on your superiority to the animals, for they are without sin, while you, with all your greatness, you defile the earth wherever you appear and leave an ignoble trail behind you -- and that is true, alas, for almost every one of us!