The wise man does not expose himself needlessly to danger, since there are few things for which he cares sufficiently; but he is willing, in great crises, to give even his life -- knowing that under certain conditions it is not worthwhile to live."

The energy of the mind is the essence of life.

The two qualities which chiefly inspire regard and affection [Are] that a thing is your own and that it is your only one.

"The aim of the wise is not to secure pleasure, but to avoid pain."

Most people would rather give than get affection.