**Not a dusty relic, but a classic of (self-)education.**

1889. *"Good Tone. A Collection of Advice and Instructions"*

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True refinement is inseparable from love for one’s neighbor and a complete absence of selfishness.

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Decorum governs all actions of life; it demands moderation in our pleasures, caution in our judgments, and eternal opposition to anything that violates our duty.

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The capacity for self-sacrifice in the ordinary minor conflicts of daily life is the key distinction between a well-bred person and a poorly-bred one.

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Politeness, by definition, is the art of expressing through outward signs the inner respect we hold for others. True politeness is rooted in sincerity. It must flow from the heart; otherwise, it leaves no lasting impression, for no amount of formal courtesy can replace genuineness.

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The foremost rules of propriety lie in preserving sincerity. Kindness should temper truth but never erase it.

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Courtesy is not a virtue of the mind. Its foundation lies in the heart. The essence of courtesy is kindness.

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Correct the flaws in your character—they may bring misfortune to all around you.

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Bear life’s sorrows with courage and resolve. This is the virtue of a noble and strong heart.