The highest stage in moral culture at which we can arrive, is when we recognise that we ought to control our thoughts. - Charles Darwin

Thus, from the war of nature, from famine and death, the most exalted object which we are capable of conceiving, namely, the production of the higher animals, directly follows. There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved.

Man in his arrogance thinks himself a great work, worthy of the interposition of a deity. More humble, and I believe truer, to consider him created from animals.

Origin of man now proved. Metaphysics must flourish. He who understand baboon would do more towards metaphysics than Locke.