But Wisdom, peevish and cross-grain'd,
Must be oppos'd, to be sustain'd.
And still your Knowledge will increase,
As You make other People's less.
In Arms and Science 'tis the same:
Our Rival's Hurts create our Fame.
At  if Disputes arise
Among the Champions for the Prize;
To prove, who gave the fairer Butt,
shows the Chalk on  Coat.
So, for the Honor of your Book,
It tells, where other Folks mistook:
And, as their Notions You confound,
Those You invent get farther Ground.