There is no such whetstone, to sharpen a good wit and encourage a will to learning, as is praise.
没有一种磨刀石像表扬一样，能磨砺人的才智，鼓励人的学习意志。
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Praise
没有一种磨刀石像表扬一样，能磨砺人的才智，鼓励人的学习意志。