We must think of human ...

We must think of human progress, not as of something going on in the race in general, but as something going on in a small minority, perpetually beleaguered in a few walled towns. Now and then the horde of barbarians outside breaks through, and we have an armed effort to halt the process. That is, we have a Reformation, a French Revolution, a war for democracy, a Great Awakening. The minority is decimated and driven to cover. But a few survive- and a few are enough to carry on.
We must think of human progress, not as of something going on in the race in general, but as something going on in a small minority, perpetually beleaguered in a few walled towns. Now and then the horde of barbarians outside breaks through, and we have an armed effort to halt the process. That is, we have a Reformation, a French Revolution, a war for democracy, a Great Awakening. The minority is decimated and driven to cover. But a few survive- and a few are enough to carry on.

Quotes from the same author

Those tragic comedians, the Chamber of Commerce red hunters, the Women's Christian Temperance Union smellers, the censors of books, the Klan regulators, the Methodist prowlers, the Baptist guardians of sacred vessels-we have the national mentality of a police lieutenant.
If I had my way, any man guilty of golf would be ineligible for any office of trust in the United States.
I know a good many men of great learning-that is, men born with an extraordinary eagerness and capacity to acquire knowledge. One and all, they tell me that they can't recall learning anything of any value in school. All that schoolmasters managed to accomplish with them was to test and determine the amount of knowledge that they had already acquired independently-and not infrequently the determination was made clumsily and inaccurately.
A man of active and resilient mind outwears his friendships just as certainly as he outwears his love affairs, his politics and his epistemology.
The wholly manly man lacks the wit necessary to give objective form to his soaring and secret dreams, and the wholly womanly woman is apt to be too cynical a creature to dream at all.