Emulation has been termed a spur to virtue, and assumes to be a spur of gold. But it is a spur composed of baser materials, and if tried in the furnace will be found to want that fixedness which is the characteristic of gold. He that pursues virtue, only to surpass others, is not far from wishing others less forward than himself; and he that rejoices too much at his own perfections will be too little grieved at the defects of other men.

Remarks on the Talents of Lord Byron and the Tendencies of Don Juan (ed. 1823)