I ought, or I ought not, constitute the whole of morality.

A fair result can be obtained only by fully stating and balancing the facts and arguments on both sides of each question." Charles Darwin

The question of whether there exists a Creator and Ruler of the Universe has been answered in the affirmative by some of the highest intellects that have ever existed.

The chief distinction in the intellectual powers of the two sexes is shown by mans attaining to a higher eminence, in whatever he takes up, than the woman. Whether deep thought, reason, or imagination or merely the use of the senses and hands.....We may also infer.....The average mental power in man must be above that of woman.

Language is an art, like brewing or baking.... It certainly is not a true instinct, for every language has to be learnt.

[Alexander von Humboldt was the] greatest scientific traveller who ever lived.

Your words have come true with a vengeance that I shd [should] be forestalled ... I never saw a more striking coincidence. If Wallace had my M.S. sketch written out in 1842 he could not have made a better short abstract! Even his terms now stand as Heads of my Chapters.