课程从来不是简单的中立知识集合，它总是选择性传统的一部分，是某些人或群体对合法知识的愿景。

When someone tells you about the peak year of human history， the period of time when things were good before things went downhill， it will always be the years of when they were 10 years sold — which is the peak of any human’s existence.

The quality of an organization's focus determines the quality of its results.

科学是一项集体事业，每一代人都为之添砖加瓦。