One general law, leading to the advancement of all organic beings, namely, multiply, vary, let the strongest live and the weakest die.
chapter VII: "Instinct", page 244 - On the Origin of Species (1859)
One general law, leading to the advancement of all organic beings, namely, multiply, vary, let the strongest live and the weakest die.
chapter VII: "Instinct", page 244 - On the Origin of Species (1859)