You can fool all the people some of the time, some of the people all the time, but you cannot fool all the people all the time.
你可以在某一时间欺骗所有人;也可以在所有时间欺骗某些人;但你不可能在所有时间欺骗所有的人。
"The heart has reasons that reason does not understand."
The past is always tense, the future perfect.