释义：当对知识的理解达到真实、确切、坚定的程度时，这种理解就会体现为具体的行动；而在行动中能做到明白、警觉、精细、明察的地步，这也反映了对相关知识的掌握。
我从不放弃。我从不屈服。
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.