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。
The only real failure in life is not to be true to the best one knows.
人生苦短,何必在意别人的看法。
In trading, you have to be comfortable with uncertainty.
行善的权力也是作恶的权力。
Never let success get to your head, and never let failure get to your heart.