I owe much to my friends; but, all things considered, it strikes me that I owe even more to my enemies. The real person springs life under a sting even better than under a caress
Plutarch has written an essay on the benefits which a man may receive from his enemies; and among the good fruits of enmity, mentions this in particular, that by the reproaches which it casts upon us, we see the worst side of ourselves
On Destiny: "Our destiny exercises its influence over us even when, as yet, we have not learned its nature: it is our future that lays down the law of our today."
Human, All Too Human