One of the main reasons is that people want to challenge themselves.

主要原因之一是人们想挑战自己。

Beyond themselves, to challenge themselves, to challenge the weaknesses, challenges to the lazy, bad habits to challenge.

超越自己，向自己挑战，向弱项挑战，向懒惰挑战，向陋习挑战。

Hard working, loyal stable, adhere to the principles of integrity, the courage to challenge themselves.

能够吃苦耐劳，忠诚稳重，坚守诚信正直原则，勇于挑战自我。

Because these kids were willing to challenge themselves, even if it meant failing at first, they ended up performing at a much higher level.

因为这些孩子更愿意挑战他们自己，即使意味着最开始时的失败，他们最终的成绩在一个高得多的水准上。