Claim: The best test of an argument is its ability to convince someone with an opposing viewpoint.

结论：最能说明辩论效果的是，让持有相反观点的人信服。

Reason: Only by being forced to defend an idea against the doubts and contrasting views of others does one really discover the value of that idea.

原因：面对疑问和他人相反的观点，只有一个人为某观点辩护时，他才能发现某观点的价值
所在。

Write a response in which you discuss the extent to which you agree or disagree with the claim and the reason on which that claim is based.