A person who has a cat by the tail knows a whole lot more about cats than someone who has just read about them.

It has always been a peculiarity of the human race that it keeps two sets of morals in stock-the private and the real, and the public and the artificial.

I have stopped smoking now and then, for a few months at a time, but it was not on principle, it was only to show off; it was to pulverize those critics who said I was a slave to my habits and couldn't break my bonds.

A sound heart is a surer guide than an ill-trained conscience.

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.

The signs of excessive indulgence in this destructive pastime are easily detectable. They are these: A disposition to eat, to drink, to smoke, to meet together convivially, to laugh, to joke, and tell indelicate stories— and mainly, a yearning to paint pictures.

It is better to support schools than jails.