“To understand this for sense it is not required that a man should be a geometrician or a logician, but that he should be mad.”
On the proposition that the volume generated by revolving the region under 1/x from 1 to infinity has finite volume. Quoted in Mathematical Maxims and Minims by N. Rose (1988)
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Thomas Hobbes 97
English philosopher, born 1588 1588–1679Related quotes

“For that fine madness still he did retain
Which rightly should possess a poet’s brain.”
To Henry Reynolds, of Poets and Poesy (1627).

Gautama Buddha, Sutta Nipāta II,14
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1880s, In Our Youth Our Hearts Were Touched With Fire (1884)

“A man should look for what is, and not for what he thinks should be.”

“Justice requires that a party should be duly summoned and fully heard before he is condemned.”
King v. Stone (1800), 1 East, 649.

"Pierre Menard, Author of the Quixote"
The Garden of Forking Paths (1942)