人类活动已成为塑造地球气候的重要力量。
"The mind evolves to meet practical demands."
应对生活的唯一方法是接受它的本来面目。
世界上充满了显而易见的事情,但偏偏没有人注意到。
It is not enough to observe and experiment, theorize and calculate. One must also imagine.