Authors:

Envy's a sharper spur than pay: No author ever spar'd a brother; Wits are gamecocks to one another.

John Gay, Thomas Park (1808). “The Poetical Works of John Gay: In Three Volumes. Collated with the Best Editions:”, p.23
Envy's a sharper spur than pay: No author ever spar'd a brother; Wits are gamecocks to one another.