Gradually there broke on him the understanding that this was a contest that he perpetuated by the very act of fighting in it. The way to victory here… - Gordon R. Dickson

And someone that brilliant must be a devil?" queried Galt, dryly.
"Not at all," explained Donal, patiently. "But having such intellectual capabilities, a man must show proportionately greater inclinations toward either good or evil than lesser people. If he tends toward evil, he may mask it in himself—he may even mask its effect on the people with which he surrounds himself. But he has no way of producing the reflections of good which would ordinarily be reflected from his lieutenants and initiates—and which, if he was truly good—he would have no reason to try and hide. And by that lack, you can read him.

Exaggeration of confidence," he said, "is a fault in people who don't know their business.

Trouble rather the tiger in his lair than the sage amongst his books. For to you Kingdoms and their armies are things mighty and enduring, but to him they are but toys of the moment, to be overturned by the flicking of a finger...