Most of the work that's done in the world gets done by people who weren't feeling all that well at the time that they did it.

Success is not something that can be measured or worn on a watch or hung on a wall. It is not the esteem of colleagues, or the admiration of the community, or the appreciation of patients. Success is the certain knowledge that you have become yourself, the person you will meant to be from all time. That should be reward enough.

There is in every country an antipathy to the foreigner.

Nothing has ever been achieved by the person who says, ‘It can’t be done.’

There is nothing to regret, either for those who go, or for those who stay behind — only an inheritance of good accomplishment to be lived up to by those who carry a loving memory in their hearts.

I can't tell you how to succeed, but I can tell you how to fail: Try to please everybody.

I could not, at any age, be content to take my place by the fireside and simply look on. Life was meant to be lived. Curiosity must be kept alive. One must not, for whatever reason, turn his back on life." Another "No one can make you feel inferior without your consent.