And so people who feel that they possess solid intellectual capacity and a sound judgement, and yet cannot claim the highest mental powers, should not be afraid of laborious study; for by its aid they may work themselves above the great mob of humanity who have the facts constantly before their eyes, and reach those secluded spots which are accessible to learned toil. For this is a sphere where there are infinitely fewer rivals, and a man of only moderate capacity may soon find an opportunity of proclaiming a theory that shall be both new and true; nay, the merit of his discovery will partly rest upon the difficulty of coming at the facts.