证明

Tā bǎ shībài kànzuò yí cì jīlěi jīngyàn de jīhuì, ér bú shì nénglì bùzú de zhèngmíng.

He sees failure as an opportunity to gain experience rather than proof of a lack of ability.

Zhè yī lùnzhèng kànsì huánhuán xiāng kòu, rán'ér qízhōng yí ge guānjiàn qiántí bìng wèi dédào chōngfèn zhèngmíng.

The argument appears tightly connected at every step; however, one key premise has not been adequately demonstrated.