Date: 1774

"I will show your letter to Duval, by way of justification for not answering his challenge; and I think he must allow the validity of it; for a frozen brain is as unfit to answer a challenge in poetry, as a blunt sword is for a single combat."

— Stanhope, Philip Dormer, fourth earl of Chesterfield (1694-1773)

Date: 1774

"His virtues and his vices, his reason and his passions, did not blend themselves by a gradation of tints, but formed a shining and sudden contrast. Here the darkest, there the most splendid colors; and both rendered more shining from their proximity."

— Stanhope, Philip Dormer, fourth earl of Chesterfield (1694-1773)

Date: 1779, 1781

"The variable weather of the mind, the flying vapours of incipient madness, which from time to time cloud reason, without eclipsing it, it requires so much nicety to exhibit, that Addison seems to have been deterred from prosecuting his own design."

— Johnson, Samuel (1709-1784)

Date: 1779, 1781

"The man that sits down to suppose himself charged with treason or peculation, and heats his mind to an elaborate purgation of his character from crimes which he was never within the possibility of committing, differs only by the infrequency of his folly from him who praises beauty which he never...

— Johnson, Samuel (1709-1784)

Date: 1779, 1781

"His strength always appears in his agility; his volatility is not the flutter of a light, but the bound of an elastick mind."

— Johnson, Samuel (1709-1784)

Date: 1779, 1781

"The heat of Milton's mind might be said to sublimate his learning, to throw off into his work the spirit of science, unmingled with its grosser parts."

— Johnson, Samuel (1709-1784)

Date: 1779, 1781

"An accumulation of knowledge impregnated his mind, fermented by study and exalted by imagination."

— Johnson, Samuel (1709-1784)

Date: 1781

"[A]ll you've said / Seems to wear Reason's stamp."

— Keate, George (1729-1797)

Date: 1781

"But as a Bow that's always bent / Hath soon its force elastic spent; / So, lest the over-burthen'd brain / (Which can't too great a weight sustain) / Should not so much rich food digest, / 'Tis sometimes good to give it rest."

— Keate, George (1729-1797)

Date: 1781

"The Church-yard abounds with images which find a mirrour in every mind, and with sentiments to which every bosom returns an echo."

— Johnson, Samuel (1709-1784)