#natural-selection

"One general law, leading to the advancement of all organic beings, namely, multiply, vary, let the strongest live and the weakest die."

"I am quite sure that our views on evolution would be very different had biologists studied genetics and natural selection before and not after most of them were convinced that evolution had occurred."

"What are the chances that we will one day discover that DNA has absolutely nothing to do with inheritance? They are effectively zero."

"Nothing in biology makes sense except in the light of evolution."