大陆漂移的第一个概念早在1910年就浮现在我的脑海中,当时我在观察世界地图时,受到大西洋两岸海岸线吻合的直接印象的启发。
You have to be strong mentally to succeed at the highest level.
沉默是愚人的美德。
The next green revolution must be both productive and environmentally responsible.
Fear is such a powerful emotion for humans that when we allow it to take us over, it drives compassion right out of our hearts.