"Diplomacy: the art of restraining power."

"A leader who confines his role to his people's experience dooms himself to stagnation a leader who outstrips his people's experience runs the risk of not being understood."

"It is, after all, the responsibility of the expert to operate the familiar and that of the leader to transcend it."

"University politics are vicious precisely because the stakes are so small."

"Time is a sort of river of passing events, and strong is its current; no sooner is a thing brought to sight than it is swept by and another takes its place, and this too will be swept away."

"Ideas devour the ages as men are devoured by their passions. When man is cured, human nature will cure itself perhaps."

"I am not a yachting person, by nature, but I have just enough experience on the sea under sail to feel a certain nostalgia for it when I see a big white racing yacht heeled over at cruising speed on the ocean, and I can still tie a mean bowline knot on just about anything in less than 10 seconds."

"I think it's great that we have organisations like Greenpeace. In a pluralistic society, we want to have people who point out all the problems that the Earth could encounter. But we need to understand that they are not presenting a full and rounded view."