背叛的那一刻是最糟糕的，当你毫无疑问地知道你被背叛的那一刻：另一个人对你怀有那么多的恶意。

What we know is not much. What we do not know is immense.

The central task of education is to implant a will and facility for learning; it should produce not learned but learning people. The truly human society is a learning society, where grandparents, parents, and children are students together.

The future of leather tanning lies in balancing tradition with technology.

If you're not embarrassed by the first version of your product, you've launched too late.

不沉溺于过去，全力以赴面向未来。