Friends can come and go, but banners hang forever.
朋友可以来来去去,但精神却永远常驻。
解析:不要窃取他人的成果,不要忘记自己的耻辱。
The truth is always something that is told, not something that is known.
We must be free not because we claim freedom, but because we practice it.
The only limit to our realization of tomorrow is our doubts of today.