郦波在讲座中引用马克·吐温的话并加以阐释
In time of war, when truth is so precious, it must be attended by a bodyguard of lies.
对待心中的欲念,放纵即有所损,所以关键在于忍;改过向善,努力即有所助益,所以关键在于悔。
The simplest materials can contain the most complex meanings.