- Man is something that shall be overcome. Thus Spoke Zarathustra
- God is dead. Thus Spoke Zarathustra
- What does your conscience say? — You shall become who you are. Thus Spoke Zarathustra
- Woman is a riddle, the solution of which is called pregnancy. Thus Spoke Zarathustra
- And if you gaze long into an abyss, the abyss also gazes into you. Thus Spoke Zarathustra
- Man is a rope stretched between the animal and the Übermensch — a rope over an abyss. Thus Spoke Zarathustra
- Every higher man has his hour when he despises his highest self. Thus Spoke Zarathustra
- He who fights with monsters should be careful lest he thereby become a monster. Thus Spoke Zarathustra