讲诚信，是天下行为准则的关键。

"The truth is rarely pure and never simple."

最好的领导者是那些多听少说的人。

The greatest enemy of truth is not the lie, but the myth.

A commonwealth is said to be instituted when a multitude of men do agree， and covenant， every one， with every one， that to whatsoever man， or assembly of men， shall be given by the major part， the right to present the person of them all， that is to say， to be their representative.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

石油的真正成本不仅仅是每桶的价格，还包括环境和社会影响。