This entrepreneur paid for new roads to benefit his hometown.
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Mulberry 桑 and catalpa 梓 were the trees parents planted beside the family home. The Book of Songs says 维桑与梓，必恭敬止 'the mulberry and the catalpa must be treated with respect', and the pair came to mean the home village itself.
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A literary word for speeches, inscriptions and formal writing: 造福桑梓 'to benefit one's hometown', 不忘桑梓 'never to forget where one comes from'. In everyday speech say 家乡 or 老家.
