Theodore Roosevelt Quote
It seems to me that the simple acceptance of this fundamental fact of American life, this acknowledgment that the law of work is the fundamental law of our being, will help us to start aright in facing not a few of the problems that confront us from without and from within. As regards internal affairs, it should teach us the prime need of remembering that, after all has been said and done, the chief factor in any man's success or failure must be his own character—that is, the sum of his common sense, his courage, his virile energy and capacity. Nothing can take the place of this individual factor.
The Strenuous Life: Essays and Addresses (1900) - National Duties