More quotes by Friedrich Nietzsche

"The man of knowledge must be able not only to love his enemies but also to hate his friends."
"The life of the enemy . Whoever lives for the sake of combating an enemy has an interest in the enemy's staying alive."
"And those who were seen dancing were thought to be insane by those who could not hear the music."
"That which does not kill us makes us stronger."
"I assess the power of a will by how much resistance, pain, torture it endures and knows how to turn to its advantage"