Our best built certainties are but sand-houses and subject to damage from any wind of doubt that blows

The spirit of Christianity proclaims the brotherhood of the race and the meaning of that strong word has not been left to guesswork, but made tremendously definite - the Christian must forgive his brother man all crimes he can imagine and commit, and all insults he can conceive and utter - forgive these injuries how many times? - seventy times seven - another way of saying there shall be no limit to this forgiveness. That is the spirit and the law of Christianity.

You want to be very careful about lying; otherwise you are nearly sure to get caught.

It is easy to find fault, if one has that disposition. There was once a man who, not being able to find any other fault with his coal, complained that there were too many prehistoric toads in it.

Two things seemed pretty apparent to me. One was that in order to be a pilot a man had to learn more than any one man ought to learn; and the other was that he must learn it all over again in a different way every 24 hours.

In the small town of Hannibal, Missouri, when I was a boy, everybody was poor, but didn't know it; and everybody was comfortable and did know it.

Always do what is right. It will gratify half of mankind and astound the other.