Test Jack

Famous quotes containing the words test and/or jack:

“He who has never failed somewhere, that man can not be great. Failure is the true test of greatness. And if it be said, that continual success is a proof that a man wisely knows his powers,—it is only to be added, that, in that case, he knows them to be small.”
—Herman Melville (1819–1891)

“Be not a Jack of all trades, but a master of one.”
—Chinese proverb.