The more intelligible a thing is, the more easily it is retained in the memory, and counterwise, the less intelligible it is, the more easily we forget it.

Further conceive, I beg, that a stone, while continuing in motion, should be capable of thinking and knowing, that it is endeavoring, as far as it can, to continue to move. Such a stone, being conscious merely of its own endeavor and not at all indifferent, would believe itself to be completely free, and would think that it continued in motion solely because of its own wish. This is that human freedom, which all boast that they possess, and which consists solely in the fact, that men are conscious of their own desire, but are ignorant of the causes whereby that desire has been determined.

Do not weep; do not wax indignant. Understand.

All the objects pursued by the multitude not only bring no remedy that tends to preserve our being, but even act as hinderances, causing the death not seldom of those who possess them, and always of those who are possessed by them.

The mind can only imagine anything, or remember what is past, while the body endures.

Pride is pleasure arising from a man's thinking too highly of himself.

Everyone has as much right as he has might.