心有其理,理性对此一无所知。
每个矿工的贡献对于保持灯火通明至关重要。
我们必须不断挑战我们的假设,并愿意改变我们的想法。
训练中流汗越多,战斗中流血越少。
The first duty of a man is to think for himself.
In the desert, I found a freedom that the city could never offer.