Collaboration in mathematics is essential; no one can solve all the problems alone.

美德比恶德更值得担忧，因为它的过度不受良心的调控。

如果明智地使用，技术可以成为可持续森林管理的最大盟友。

个人的行为并非以社会福利最大化为目标。

The essence of modernity is psychologism, the experiencing and interpretation of the world in terms of the reactions of our inner life and indeed as an inwardness.

当心忍耐者的暴怒。

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when to be obeyed.