Nothing shocks our moral feelings so deeply as cruelty does. We can forgive every other crime, but not cruelty. The reason for this is that it is the very opposite of compassion.
Arthur SchopenhauerFor whence did Dante take the materials for his hell but from this our actual world? And yet he made a very proper hell of it.
Arthur SchopenhauerWhen a new truth enters the world, the first stage of reaction to it is ridicule, the second stage is violent opposition, and in the third stage, that truth comes to be regarded as self-evident.
Arthur Schopenhauer