No matter how full a reservoir of maxims one may possess, and no matter how good one's sentiments may be, if one has not taken advantage of every concrete opportunity to act, one's character may remain entirely unaffected for the better.
This life is worth living, we can say, since it is what we make it.
Believe that life is worth living and your belief will help create the fact.
The greatest enemy of any one of our truths may be the rest of our truths.
There is but one cause of human failure. And that is man's lack of faith in his true Self.
A man has as many social selves as there are individuals who recognize him.