Every mathematical problem has a solution; it just takes time and creativity to find it.

世界悬于一线，那根线就是人的心灵。

世界是一本书，不旅行的人只读了一页。

当你既倾听数据又倾听人时，才能做出最佳决策。

One can't proceed from the informal to the formal by formal means.

梦想越多，成就越大。