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To be happy, we must not be too concerned with others.
As to the gods, I do not know whether they exist or not, or what they are like.
In Israel, in order to be a realist you must believe in miracles.
The trade-off between bias and variance is a fundamental concept in machine learning.
出自汉·桓宽《盐铁论·相刺》。释义:碎玉满箱,算不得拥有财宝;读了几箱子的书,也不等于就掌握了其中的道理。