Quotes about Insatiability

The vanity and insatiability of the human heart are unspeakable. What a man has does not please him; what he does not have, that he yearns for.

- Martin Luther

Sheol and Abaddon are never satisfied; so the eyes of man are never satisfied.

- Proverbs 27:20

The avarice of mankind is insatiable.

- Aristotle