莫叹时光流逝，且效时钟前行。
Don’t watch the clock; do what it does. Keep going.
— Sam Levenson
【English explanation】
Sam Levenson’s aphorism contrasts passive time-watching with active time-using. A clock never stops ticking — it moves forward relentlessly, regardless of whether anyone is watching. The advice is simple yet profound: instead of anxiously monitoring how much time has passed or how far you still have to go, simply keep moving. Progress is not measured by counting the hours but by continuing to act within them. The clock doesn’t worry about being late or early; it just keeps going. So should we.
【中文解读】
塞姆·利文森这句箴言将被动地等待时间与主动地利用时间做了对比。时钟从不曾停歇——它永远向前，不因无人注视而暂缓。建议朴素却深刻：与其焦虑地观望时光流逝或路途遥远，不如继续前行。进步不在于计算走了多久，而在于持续行动。时钟从不担心迟到或早到——它只是不停地走。我们也当如此。
