The greatest productive force is human selfishness....
The greatest productive force is human selfishness.
- Robert Heinlein
- In an individual, selfishness uglifies the soul; for the human species, selfishness is extinction. - David...
- The selfish man suffers more from his selfishness than he from whom that selfishness withholds...
- Being unappreciated is a sign of selfishness.
- Nothing resembles selfishness more closely than self-respect. - George Sand
- Charity does not like arithmetic; selfishness worships it. - Mason Cooley