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The heart of the educator must be a living flame, a source of warmth and light.
解释:神态傲慢,谁还愿意和你相处呢?最洁白的东西好像十分黑暗,最道德的人好像有所不足。
解释:对事物最好的证明是有效果,对论点最好的认定是有证据。
The soul is placed in the body like a rough diamond, and must be polished, or the luster of it will never appear.
Psychology must be a practical science, concerned with the how and why of mental operations.