If you always do what you've always done, you'll always get what you always got.

To become a millionaire you must become a Lion, you can't even spell millionaire without the word Lion

Change the way you look at things and the things you look at change.

Go as far as you can see; when you get there, you’ll be able to see farther.

It is a law of nature we overlook, that intellectual versatility is the compensation for change, danger, and trouble. An animal perfectly in harmony with its environment is a perfect mechanism. Nature never appeals to intelligence until habit and instinct are useless. There is no intelligence where there is no change and no need of change. Only those animals partake of intelligence that have a huge variety of needs and dangers.

To have a solid foundation of skepticism, -that is to say, the faculty of changing at any moment, of turning back, of facing successively the metamorphoses of life.