To do anything truly worth doing, I must not stand back shivering and thinking of the cold and danger, but jump in with gusto and scramble through as well as I can.
Anyone who has gumption knows what it is, and anyone who hasn't can never know what it is. So there is no need of defining it.
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.
Experience is that marvelous thing that enables you to recognize a mistake when you make it again.
The happiest is the person who suffers the least pain; the most miserable who enjoys the least pleasure.
Nothing is said that has not been said before.
The lion and the calf shall lie down together but the calf won't get much sleep.