William Hazlitt (1778-1830)
From Literary Anecdotes About 19th Century Authors Born Before 1830

JOHN LAMB (the brother of Charles) once knocked down Hazlitt, who was impertinent to him; and on those who were present interfering and begging Hazlitt to shake hands and forgive him, Hazlitt said,

'Well, I don't care if I do. I am a metaphysician, and do not mind a blow; nothing but an idea hurts me.'

From Moore, Journals (9 September 1820), iii. 146.