Do not boast about tomorrow, for you do not know what a day may bring.

Every man takes the limits of his own vision for the limits of the world.

A change of fortune hurts a wise man no more than a change of the moon.

Often the prudent, far from making their destinies, succumb to them; it is destiny which makes them prudent.

It would be madness, and inconsistency, to suppose that things which have never yet been performed can be performed without employing some hitherto untried means.