There is something splendid about innocence; but what is bad about it, in turn, is that it cannot protect itself very well and is easily seduced. - Immanuel Kant

Man must be disciplined, for he is by nature raw and wild.

A man abandoned by himself on a desert island would adorn neither his hut nor his person; nor would he seek for flowers, still less would he plant them, in order to adorn himself therewith. It is only in society that it occurs to him to be not merely a man, but a refined man after his kind (the beginning of civilization). For such do we judge him to be who is both inclined and apt to communicate his pleasure to others, and who is not contented with an object if he cannot feel satisfaction in it in common with others. Again, every one expects and requires from every one else this reference to universal communication of pleasure, as it were from an original compact dictated by humanity itself.

There is nothing at all in the world that one can think of, or even out of it, that can be held good without qualification, except a good will. (Ch. 1)