There can be no causeless love or any sort of causeless emotion. An emotion is a response to a fact of reality, an estimate dictated by your standards.
If there are degrees of evil, it is hard to say who is more contemptible: the brute who assumes the right to force the mind of others or the moral degenerate who grants to others the right to force his mind.
Every form of causeless self-doubt, every feeling of inferiority and secret unworthiness is, in fact, man’s hidden dread of his inability to deal with existence.