People with a clear sense of identity know who they are and what they stand for. They have a strong sense of self and are not easily swayed by others.

挑战是考验我们韧性的烤箱，我们如何应对它们决定了我们的成功。

穆里尼奥嘲讽瓜迪奥拉

We must measure success not just in barrels produced, but in emissions avoided.

数学的语言是普遍的，超越了文化和语言的障碍。

创造性力量很容易变成破坏性力量。这只取决于人们的道德人格：是用此力量做好事或做坏事。如果人们缺乏这种道德人格，则没有一种说教能够提供它或取而代之。

The best experiments often come from simple ideas and careful observation.