The thing for us to do is just to do our duty, and not worry about whether anybody sees us do it or not.

What a lumbering poor vehicle prose is for the conveying of a great thought! ... Prose wanders around with a lantern & laboriously schedules & verifies the details & particulars of a valley & its frame of crags & peaks, then Poetry comes, & lays bare the whole landscape with a single splendid flash.

That is the way of the scientist. He will spend thirty years in building up a mountain range of facts with the intent to prove a certain theory; then he is so happy with his achievement that as a rule he overlooks the main chief fact of all-that all his accumulation proves an entirely different thing.

Never put off till tomorrow what you can do day after tomorrow just as well.

Tell me about a person's family, friends, and community, and I'll tell you what his opinions are.

I admire the serene assurance of those who have religious faith. It is wonderful to observe the calm confidence of a Christian with four aces.

Worrying is paying interest on a debt you might not even owe.