Never invest in a company without understanding its finances. The biggest losses in stocks come from companies with poor balance sheets.

"We are all in the gutter, but some of us are looking at the stars."

自动控制的根本问题是在存在干扰的情况下维持期望状态。

不期望完全效法古代，不墨守一成不变的旧规，研究当代的实际情况，从而采取相应的措施。

真正的诗篇不是用墨水而是用鲜血写就的。

The more you subtract, the more you reveal.