Men who are lovers of wisdom [i.e., philosophers] must be inquirers into many things.
War is the father and king of all: some he has made gods, and some men; some slaves and some free.
Those who love wisdom must investigate many things
The world is nothing but a great desire to live and a great dissatisfaction with living.
The only constant is change. Unless you get a small group of neighbors together to stop it.
The wise is one only. It is unwilling and willing to be called by the name of Zeus.