The man of knowledge must be able not only to love his enemies but also to hate his friends.Friedrich Nietzsche
A woman may very well form a friendship with a man, but for this to endure, it must be assisted by a little physical antipathy.Friedrich Nietzsche
Go up close to your friend, but do not go over to him! We should also respect the enemy in our friend.Friedrich Nietzsche
A good writer possesses not only his own spirit but also the spirit of his friends.Friedrich Nietzsche
A friend should be a master at guessing and keeping still: you must not want to see everything.Friedrich Nietzsche