People of higher talent work, even if they seem to do nothing

Nothing is more apt to deceive us than our own judgment of our work. We derive more benefit from having our faults pointed out by our enemies than from hearing the opinions of friends.

A well-spent day brings happy sleep.

The study of what is excellent is food for the mind and body.

You don't get into trouble because of the things you don't know. It is the things you don't know you don't know that really get you into a mess.

Just as eating against one's will is injurious to health, so studying without a liking for it spoils the memory, and it retains nothing it takes in.

The part always has a tendency to reunite with its whole in order to escape from its imperfection.