gǔ / rén / cháng / shuō / liú / shuǐ / bù / fǔ / hù / shū / bù / dù / tí / xǐng / wǒ / men / yào / bǎo / chí / yùn / dòng / hé / huó / lì古人常说,流水不腐,户枢不蠹,提醒我们要保持运动和活力。As the ancients often said, flowing water does not rot, reminding us to stay active and full of energy.