Many kinds of monkeys have a strong taste for tea, coffee and spirituous liqueurs.

When the views entertained in this volume on the origin of species, or when analogous views are generally admitted, we can dimly forsee that there will be a considerable revolution in natural history.

A man who has no assured and ever present belief in the existence of a personal God or of a future existence with retribution and reward, can have for his rule of life, as far as I can see, only to follow those impulses and instincts which are the strongest or which seem to him the best ones

So great is the economy of nature, that most flowers which are fertilised by crepuscular or nocturnal insects emit their odour chiefly or exclusively in the evening.

Endless forms most beautiful and most wonderful have been, and are being evolved

Much love much trial, but what an utter desert is life without love.

Multiply, vary, let the strongest live and the weakest die.