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: April, 1783

"Or it may be thus: his ideas hide themselves like birds in gloomy weather; but in warm sunshine they spring forth gay and airy."

— Boswell, James (1740-1795)

Date: 1785

"I was delighted with this flash bursting from the cloud which hung upon his mind, closed my letter directly, and joined the company."

— Boswell, James (1740-1795)

Date: 1785

"From shadows thinner than the fleeting night / That floats along the vale, or haply seems / To wrap the mountain in its hazy vest, / (Which the first sun-beam dissipates in air.) / How dost thou conjure monsters which ne'er mov'd / But in the chaos of thy frenzied brain!"

— Pratt, Samuel Jackson [pseud. Courtney Melmoth] (1749-1814)

Date: 1787

"It is enough--my scruples are at an end--my prejudices, like clouds before the rising sun, vanish before the lights of your superior reason."

— Bickerstaff, Isaac (b. 1733, d. after 1808)