Jonathan Swift Quote

These unhappy people were proposing schemes for persuading monarchs to choose favourites upon the score of their wisdom, capacity and virtue...with many other wild impossible chimeras, that never entered before into the heart of man to conceive, and confirmed in me the old observation, that there is nothing so extravagant and irrational which some philosophers have not maintained for truth.

Gulliver's Travels (1726) 'A Voyage to Laputa, etc.' ch. 6