I have met with a notion in Dryden's Poems, which reads very like a blunder. It occurs in the "Spanish Friar," as follows:—

"There is a pleasure sure in being mad,

Which none but madmen know."

And again in this couplet:

"And frantic men in their mad actions show

A happiness, that none but madmen know;"

There is a description of madness to which all men are more or less subject, and which Pascal alludes to in one of his "Pensées:"

"Les hommes sont si nécessairement fous, que ce serait être fou par un autre tour de folie, que de ne pas être fou:"

or, as Boileau has it in the couplet:

"Tous les hommes sont fous, et malgré leurs soins,