He knows not his own strength that hath not met adversity.

He knows not his own strength who hath not met adversity.

He knows not his own strength that has not met adversity.

Will power is only the tensile strength of one's own disposition. One cannot increase it by a single ounce.

A man is never completely alone in this world. At the worst, he has the company of a boy, a youth, and by and by a grown man - the one he used to be.

Artists are the monks of the bourgeois state.