可持续性不是一种选择，而是我们共同的责任。

The mining industry has a responsibility to leave communities better than we found them.

我不是老师，我是学生。

I'm not here to be perfect, I'm here to be honest.

悲观者抱怨风向，乐观者期待风向改变，而领导者调整船帆。

Setting goals is the first step in turning the invisible into the visible.

解读：教育不是生硬灌输，而是用教师自身人格魅力、思想境界，潜移默化感染学生，激发学生内在觉醒，实现心灵传递。