在危机时期，真正的领导力体现在能够清晰而坚定地做出艰难决策。
对待妻室子女和仆人，应说话谨慎稳重，日常饮食起居生活中，要随时检点言行。
真相很少是纯粹的，也从来不简单。
Today is difficult, tomorrow is more difficult, but the day after tomorrow is beautiful.
自然界的普遍法则大多不是直接感知的对象。
The secret of all effective advertising is not the creation of new and tricky words and pictures, but one of putting familiar words and pictures into new relationships.
Never use a credit card for credit. The only kind of credit， or debt， that is acceptable is debt to acquire something whose exchange value is extremely likely to increase， like in a home. The exchange value of most things diminishes or vanishes the moment you purchase them. Don’t be in debt to losers.
Curiosity is the engine that drives scientific progress.