The difference between a good business and a bad business is that good businesses throw up one easy decision after another. The bad businesses throw up painful decisions time after time.

The devil doesn’t need horns to be dangerous.

——在遗嘱上签名，稍休后说几句话勉励各同志，1925年3月11日

Legal obligations are not merely moral obligations backed by sanctions.

I do not lack the courage to think a thought all the way through, and thus far I have encountered no thought that I have feared.