Date: 1754

"But yet so difficult is the intellectual commerce, so narrow the intellectual fund, that the wisest men are frequently obliged to employ their money like counters, and their counters like money, in one case, however, without loss, in the other without fraud. We may be said to do the first, that ...

— St John, Henry, styled first Viscount Bolingbroke (1678-1751)

Date: January 12, 1760

"To fix deeply in the mind the principles of science, to settle their limitations, and deduce the long succession of their consequences; to comprehend the whole compass of complicated systems, with all the arguments, objections, and solutions, and to reposite in the intellectual treasury the numb...

— Johnson, Samuel (1709-1784)

Date: 1817

"But he, the bard of every age and clime, / Of genius fruitful, ardent and sublime, / Who, from the glowing mint of fancy, pours / No spurious metal, fused from common ores, / But gold, to matchless purity refined, / And stamp'd with all the godhead in his mind."

— Gifford, William (1756-1826)