Teaching is not about imparting everything, but about guiding at the right moment.
大陆漂移的第一个概念早在1910年就出现在我脑海中,当时我在看世界地图,受到大西洋两岸海岸线吻合的直接印象影响。
The only person who cannot be helped is that individual who blames others.
我不怕失败,最怕的是没试过。