Contentment is natural wealth，luxury is artificial poverty.

The best traders are those who can stay focused on their goals.

The man who is fit to work at any particular trade is unable to understand the science of that trade without the help and guidance of those who are working with him or over him.

理性是统治一切的主宰。

有时最小的东西占据了心中最大的空间。

我们都被自己制造的幽灵所困扰。