Date: Saturday, May 17, 1712

"Mirth is like a Flash of Lightning, that breaks thro a Gloom of Clouds, and glitters for a Moment; Chearfulness keeps up a kind of Day-light in the Mind, and fills it with a steady and perpetual Serenity."

— Addison, Joseph (1672-1719)

Date: 1731

"Secondly, Neither doth every Involuntary Phantasm, or such as the Soul is not Conscious to it self to have purposely excited or raised up within it self, seem to be a Sensation or Perception of a thing, as existing without us; for there may be Straggling Phantasms, which come into the Mind we kn...

— Cudworth, Ralph (1617-1688)

Date: 1751, 1777

"There seems here a necessity for confessing that the happiness and misery of others are not spectacles entirely indifferent to us; but that the view of the former, whether in its causes or effects, like sun-shine or the prospect of well-cultivated plains, (to carry our pretensions no higher), co...

— Hume, David (1711-1776)

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)