清白是自己的辩护。
Just the discipline of having to put your thoughts in order with somebody else is very useful thing.
When you fail, you learn. When you succeed, you learn even more.
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。
I would rather be right than consistent.