1. A year's plan lies in spring, a day's plan lies in morning, a family's plan lies in harmony, and a lifetime's plan lies in diligence.

Parallelism and duality

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2. It's hard to paint a tiger's skin but not a bone.

"Bi" and "Xing"

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4. The green hills don't change, and the green waters will flow forever. See you later.

exaggerate

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