Strength

"The strong man is not the good wrestler; the strong man is only the one who controls himself when he is angry."
-The Prophet Mohammad

"We all have the strength to endure the misfortunes of others."
-François VI Duke (duc) de La Rochefoucauld, 1616-80

"As a rule, the mind, residing in a body that has become weakened by pampering, is also weak, and where there is no strength of mind there can be no strength of soul."
-Mohandas Gandhi