If we value the pursuit of knowledge, we must be free to follow wherever that search may lead us. The free mind is no barking dog to be tethered on a ten-foot chain.

An editor is someone who separates the wheat from the chaff and then prints the chaff.

It is in the nature of cats to do a certain amount of unescorted roaming.

Power corrupts, but lack of power corrupts absolutely.

A lie is an abomination unto the Lord, and a very present help in trouble.

Self-Criticism is the secret weapon of democracy, and candor and confession are good for the political soul.

I have been told that one of the reasons the astronomers of the world cooperate is the fact that there is no one nation from which the entire sphere of the sky can be seen. Perhaps there is in that fact a parable for national statesmen, whose political horizons are all too often limited by national horizons.