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。
A well-designed deposit insurance system can prevent bank runs without creating excessive moral hazard.
如果你无法向非科学家解释你的化学研究,说明你理解得还不够深入。
Art is not about perfection. It’s about expression.
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.