为全人类提供食物的战斗已经结束。为未来全人类提供食物的战斗才刚刚开始。
The battle to feed all of humanity is over. The battle to feed all of humanity in the future has just begun.
The environment shapes behavior through the mechanism of reinforcement.
The laws of physics are the same everywhere in the universe.
我们不能忽视煤炭的经济作用,但也不能忽视其环境影响。