The slowness of one section of the world about adopting the valuable ideas of another section of it is a curious thing and unaccountable

Inherited ideas are a curious thing, and interesting to observe and examine.

Don't go around saying the world owes you a living; the world owes you nothing; it was here first

Don’t go around saying the world owes you a living. The world owes you nothing. It was here first.

It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so.

To get the right word in the right place is a rare achievement. To condense the diffused light of a page of thought into the luminous flash of a single sentence, is worthy to rank as a prize composition just by itself...Anybody can have ideas--the difficulty is to express them without squandering a quire of paper on an idea that ought to be reduced to one glittering paragraph.