سُميّة

“It is indisputable that the being whose capacities of enjoyment are low, has the greatest chance of having them fully satisfied; and a highly endowed being will always feel that any happiness which he can look for, as the world is constituted, is imperfect. But he can learn to bear its imperfections, if they are at all bearable; and they will not make him envy the being who is indeed unconscious of the imperfections, but only because he feels not at all the good which those imperfections qualify.

It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied. And if the fool, or the pig, is of a different opinion, it is only because they only know their own side of the question.”
― John Stuart Mill, Utilitarianism

“A person may cause evil to others not only by his actions but by his inaction, and in either case he is justly accountable to them for the injury.”
― John Stuart Mill, On Liberty

“You must have chaos within you to give birth to a dancing star.”
― Friedrich Nietzsche

“Hell is—other people!”
― Jean-Paul Sartre, No Exit