我们开采的每一吨矿石都承载着对未来的责任。
Every ton of ore we extract carries with it a responsibility to the future.
制造链式反应堆的基本点是正确安排材料。
It is much easier to change how you think by changing your behavior， than it is to change your behavior by changing how you think. Act out the change you seek.
Memory was in this respect similar to anticipation: an instrument of simplification and selection.