The wise man belongs to all countries, for the home of a great soul is the whole world.
Medicine heals diseases of the body, wisdom frees the soul from passions.
It is greed to do all the talking but not to want to listen at all.
It is hard to fight against anger: to master it is the mark of a rational man.
The man enslaved to wealth can never be honest.
Nothing exists except atoms and empty space; everything else is opinion.