Quotes about useful
Wealth, like happiness, is never attained when sought after directly. It comes as a by-product of providing a useful service.
Henry Ford
It is not enough to teach a man a specialty. Through it he may become a kind of useful machine but not a harmoniously developed personality. It is essential that the student acquire an understanding of and a lively feeling for values. He must acquire a vivid sense of the beautiful and of the morally good.
Albert Einstein
