- "At times one remains faithful to a cause only because its opponents do not cease to be insipid."
- "Plato was a bore."
- "Does wisdom perhaps appear on the earth as a raven which is inspired by the smell of carrion?"
- "Whoever despises himself still respects himself as one who despises."
- "It is not the lake of love, but a lack of friendship that makes unhappy marriages."
- "Cynicism is the only form in which base souls approach honesty."
- "A few hours of mountain climbing turn a villain and a saint into two rather equal creature. Exhaustion is the shortest way to equality and fraternity, and liberty is added eventually by sleep."
- "The man of knowledge must be able not only to love his enemies but also to hate his friends."
- "The imagination of the good artist or thinker produces continuously good, mediocre or bad things, but his judgment, trained and sharpened to a fine point, rejects, selects, connects […] All great artists and thinkers are great workers, indefatigable not only in inventing, but also in rejecting, sifting, transforming, ordering."
- "When we are tired, we are attacked by ideas we conquered long ago."
- "The most common lie is that which one tells himself; lying to others is relatively an exception."
- "He who has a why to live can bear almost any how."
- "Not that you lied to me but that I no longer believe you has shaken me."
- "The true man wants two things; danger and play. For that reason he wants a woman, as the most dangerous plaything."
- "A subject for a great poet would be God's boredome after the seventh day of creation."