You may imitate, but never counterfeit.

The mind, too, has its regimen. It needs gymnastics, just like the body does.

Temperament is the thermometer of character.

Love is the reduction of the universe to the single being, and the expansion of a single being, even to God

Does not any limit imposed upon one inspire a desire to go beyond it? Does not our keenest suffering arise when our free will is crossed?

Emulation admires and strives to imitate great actions; envy is only moved to malice.

Love or hatred must constantly increase between two persons who are always together; every moment fresh reasons are found for loving or hating better.