All things come out of the one, and the one out of all things.
Change is the only constant.
There is but one world common for those who are awake, but when men are asleep, each turns away into a world of his own.
There is exchange of all things for fire and of fire for all things, as there is of wares for gold and of gold for wares.
Learning many things does not teach understanding
The wise is one only. It is unwilling and willing to be called by the name of Zeus.