If we did but know how little some enjoy of the great things that they possess, there would not be much envy in the world.

Envy eats nothing but its own heart

The envious will die, but envy never. [Fr., Les envieux mourront, mais non jamais l'envie.]

Whoever feels pain in hearing a good character of his neighbor, will feel a pleasure in the reverse. And those who despair to rise in distinction by their virtues, are happy if others can be depressed to a level of themselves.

Envy not greatness: for thou mak'st thereby Thyself the worse, and so the distance greater.

Envy consists in seeing things never in themselves, but only in their relations. If you desire glory, you may envy Napoleon, but Napoleon envied Caesar, Caesar envied Alexander, and Alexander, I daresay, envied Hercules, who never existed.