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The greatest discovery of my generation is that a human being can alter his life by altering his attitudes

All my life I still have found, and I will forget it never; every sorrow hath its bound, and no cross endures forever.

It is folly for an eminent man to think of escaping censure, and a weakness to be affected with it. All the illustrious persons of antiquity, and indeed of every age in the world, have passed through this fiery persecution

If you wish to succeed in life, make perseverance your bosom friend, experience your wise counselor, caution your elder brother, and hope your guardian genius

The post office has a great charm at one point of our lives. When you have lived to my age, you will begin to think letters are never worth going through the rain for

All life is an experiment. The more experiments you make the better