户枢不蠹 / 戶樞不蠹

hù​shū​bù​dù

vitality

the principle that constant activity prevents decay or stagnation, just as a frequently used door hinge does not become worm-eaten

俗话说“流水不腐，户枢不蠹”，生命在于运动。

created sense Mar 4, 2026, 02:25 AM