This is the 7343rd most frequent Chinese word.
自知
Self-awareness or self-knowledge.
In this sentence, '自知' is used to denote the knowledge one has about their own limitations.
他自知能力有限，所以选择了较为简单的任务。
He knows his capabilities are limited, so he chose simpler tasks.
Here, '自知' emphasizes the awareness of personal flaws or errors.
失败后，他痛苦地自知自己的错误，并决定改进。
After the failure, he painfully recognized his mistakes, deciding to improve.
In this context, '自知' refers to the general concept of self-awareness as a valuable characteristic.