对做好自己的事感到满足，不必理会别人如何议论你。

创新是成功的关键。

如果你不自我颠覆，别人就会颠覆你。

There's nothing more American than a coal miner.

One must be a god to be able to tell successes from failures without making a mistake.

Be still. Apart from this the mind has no task to do or thought to think.

农民的福利就是国家的福利。