Unless you expect the unexpected you will never find it, for it is hard to discover and hard to attain.

No one can step twice into the same river, nor touch mortal substance twice in the same condition. By the speed of its change, it scatters and gathers again.

We have to be faster in calming down a resentment than putting out a fire, because the consequences of the first are infinitely more dangerous than the results of the last; fire ends burning down some houses at the most, while the resentment can cause cruel wars, with the ruin and total destruction of nations.

For those who are awake, the Cosmos is One.

Men who are lovers of wisdom [i.e., philosophers] must be inquirers into many things.

Much learning does not teach sense.

It is in changing that things find purpose.