...he who remains passive when over-whelmed with grief loses his best chance of recovering his elasticity of mind.

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

I feel like an old warhorse at the sound of a trumpet when I read about the capturing of rare beetles.

Traveling ought also to teach him distrust; but at the same time he will discover, how many truly kind-hearted people there are, with whom he never before had, or ever again will have any further communication, who yet are ready to offer him the most disinterested assistance.

Great is the power of steady misrepresentation; but the history of science shows that fortunately this power does not long endure.

I fully subscribe to the judgement of those writers who maintain that of all the differences between man and the lower animal, the moral sense of conscience is by far the most important....It is the most noble of all the attributes of man.

I think it can be shown that there is such an unerring power at work in Natural Selection, which selects exclusively for the good of each organic being.