The principle goal of education in the schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done.
化学的艺术在于分离、识别和量化不同物质的能力。
我们有四千万个失败的理由,但没有一个借口。
我们的生活在我们选择沉默面对重要事情的那一刻开始走向终结。