To be persuasive we must be believable; to be believable we must be credible; credible we must be truthful.

To be persuasive we must be believable; to be believable we must be credible; credible we must be truthful.

要有说服力，我们必须是可信的;要使人相信，我们必须是可信的;我们必须诚实。

-- Edward R. Murrow 爱德华·默罗