Stray birds of summer come to my window to sing and fly away。 And yellow leaves of autumn， which have no songs， flutter and fall there with a sigh。
夏天的飞鸟，飞到我窗前唱歌，又飞去了。 秋天的黄叶，他们没有什麼可唱的，只是叹息一声，飞落在那里。
出自《抱朴子·外篇·广譬》。登山的时候，不因为山路艰险便停止，就一定能够到达山顶。积善也不会因为穷困而埋怨，便能够使自己获得长久的美名。
我从未怀疑过自己。
风险管理是战略管理的重要组成部分。
数学家的模式，就像画家或诗人的模式一样，必须是美丽的；思想，就像颜色或文字一样，必须以和谐的方式结合在一起。
Think globally, act locally.
The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.
最好的故事是那些挑战你以不同方式思考的故事。