“Moral power is always more dangerous to an oppressor than political force.”

“Political realism is aware of the moral significance of political action. It is also aware of the ineluctable tension between the moral command and the requirements of successful political action. And it is unwilling to gloss over and obliterate that tension and thus to obfuscate both the moral and the political issue by making it appear as though the stark facts of politics were morally more satisfying than they actually are, and the moral law less exacting than it actually is.”

“Power in the hands of the reformer is no less potentially corrupting than in the hands of the oppressor.”

“There is a force more powerful than steam and electricity: the will.”

“There is nothing more powerful and nothing more dangerously beautiful than a free mind.”

“Tension, in the long run, is a more dangerous force than any feud known to man.”