The spirit of man can endure only so much and when it is broken only a miracle can mend it.

One may summon his philosophy when they are beaten in battle, not till then.

Travel and society polish one, but a rolling stone gathers no moss, and a little moss is a good thing on a man.

Some men are like nails, very easily drawn; others however are more like rivets never drawn at all.

The Kingdom of Heaven is not a place, but a state of mind.

The lure of the distant and the difficult is deceptive. The great opportunity is where you are.

I seldom go into a natural history museum without feeling as if I were attending a funeral.

The smallest deed is better than the greatest intention.

Nature teaches more than she preaches. There are no sermons in stones. It is easier to get a spark out of a stone than a moral.

There is hardly a man on earth who will take advice unless he is certain that it is positively bad.

To learn something new, take the path that you took yesterday.

To me - old age is always ten years older than I am.

To treat your facts with imagination is one thing, to imagine your facts is another.

The secret of happiness is something to do.

A man can fail many times, but he isn't a failure until he begins to blame somebody else.