Charles Darwin

"If I had my life to live over again, I would have made a rule to read some poetry and listen to some music at least once every week."

"A man who dares to waste one hour of time has not discovered the value of life."

"Looking not to any one time, but to all time, if my theory be true, numberless intermediate varieties, linking most closely all the species of the same group together, must assuredly have existed; but…"

"Even insects express anger, terror, jealousy, and love by their stridulation."

"After a time the minute colourless particles which are imbedded in the flowing protoplasm are drawn towards and unite with the aggregated masses; so that the protoplasm on the walls being now rendered…"

"I love fools' experiments. I am always making them."

"Law of Battle. — With savages, for instance the Australians, the women are the constant cause of war both between members of the same tribe and between distinct tribes. So no doubt it was in ancient t…"

"I should premise that I use the term Struggle for Existence in a large and metaphorical sense, including dependence of one being on another, and including not only the life of the individual, but succ…"