Tā yíxiàng xǐhuan qīngchē-jiǎncóng, bú yuàn jīngdòng dìfāng guānyuán.
He has always preferred to travel simply, not wanting to bother local officials.
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From Liu E's late-Qing novel 《老残游记》 (The Travels of Lao Can), chapter 8: 轻车简从的向平阴进发, 'set off toward Pingyin with a light carriage and few attendants.' The phrase specifically describes officials deliberately forgoing their usual retinue.
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Highly formal, almost always applied to officials or leaders. Carries a positive connotation, suggesting humility and a focus on substance rather than ceremony. Rarely used of ordinary travelers.