A kindness is as heavy as a mountain, a charcoal in times of need, blood is thicker than water, a sincere relationship, deep friendship, like-mindedness, deep brotherhood, Cheng Men Li Xue, Kong Rong let pears, visit the thatched cottage three times, raise a case with eyebrows

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There is an inherent politeness that is tied to love. It produces the most agreeable courtesy in the appearance of conduct.

——Goethe Politeness is more powerful than law.

Courtesy can often replace the noblest feelings.

——Mérimée A person's courtesy is a mirror that reflects his portrait.

——Goethe There are two types of bad etiquette: the first is shyness; the second is indiscretion and frivolity. The only way to avoid these two situations is to abide by the following rule: Don't look down on yourself, and don't look down on others.

——John Locke Men should behave like their clothes, which should not be too tight or too dressy, but should be loose enough to facilitate work and movement.

——Bacon

Courtesy wins everything without spending a penny. Cowardice is the surest protection against temptation.

——Mark Twain

——Montaigne

Respecting others is respecting yourself.

——Galsworthy

——Carlyle