Some minds have a powerful affinity for what is sterling and useful. Themselves strong like the loadstone, they are constantly acquiring facts, and principles, and maxims of wisdom. They gain the respect of others. They become master-spirits, moving and controlling their fellows. If in business, they turn out successful merchants; if students, they step forth the chiefs of their profession; if thrown into public life, they graduate into the highest ranks of statesmanship, and become the moulders of an age, the disposers of an empire, the movers of mankind.