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"Matching methods can be a powerful tool when randomization is not possible."

I'm not big on compromise. I understand compromise. Sometimes compromise is the right answer, but oftentimes compromise is the equivalent of defeat, and I don't like being defeated.

不要害怕你的生活將要結束，應該擔心你的生活永遠不會真正開始。

Logic is the foundation of all mathematical reasoning.