There is no greater evil one can suffer than to hate reasonable discourse.

There are two kinds of geniuses. The characteristic of the one is roaring, but the lightning is meagre and rarely strikes; the other kind is characterized by reflection by which it constrains itself or restrains the roaring. But the lightning is all the more intense; with the speed and sureness of lightning it hits the selected particular points - and is fatal.

The greatest hazard of all, losing one’s self, can occur very quietly in the world, as if it were nothing at all. No other loss can occur so quietly; any other loss - an arm, a leg, five dollars, a wife, etc. - is sure to be noticed.

Do not interrupt the flight of your soul; do not distress what is best in you; do not enfeeble your spirit with half wishes and half thoughts. Ask yourself and keep on asking until you find the answer, for one may have known something many times, acknowledged it; one may have willed something many times, attempted it - and yet, only the deep inner motion, only the heart's indescribable emotion, only that will convince you that what you have acknowledged belongs to you, that no power can take it from you - for only the truth that builds up is truth for you.

Men think that it is impossible for a human being to love his enemies, for enemies are hardly able to endure the sight of one another. Well, then, shut your eyes--and your enemy looks just like your neighbor.

Take a book, the poorest one written, but read it with the passion that it is the only book you will read. Ultimately, you will read everything out of it, that is, as much as there was in yourself, and you could never get more out of reading, even if you read the best of books.

What is existence for but to be laughed at if men in their twenties have already attained the utmost?