The difference in men does ...

The difference in men does not lie in the size of their hands, nor in the perfection of their bodies, but in this one sublime ability of concentration: to throw the weight in one blow, to live eternity in an hour.
The difference in men does not lie in the size of their hands, nor in the perfection of their bodies, but in this one sublime ability of concentration: to throw the weight in one blow, to live eternity in an hour.

Quotes from the same author

Friendship, like credit, is highest when it is not used.
Never explain - your friends do not need it and your enemies will not believe you anyway.
A little more persistence, a little more effort, and what seemed hopeless failure may turn to glorious success.
There is no failure except in no longer trying.
A failure is a man who has blundered but is not capable of cashing in on the experience.