It means persistent work and does not mean that we are to exhaust ourselves all day and night without any rest.
勤奋意味着坚持不懈地工作，但它并不意味着日夜竭尽全力而无休息地工作。
Riddle Little jun on, night and day without rest, hoofbeat man like war drums, remind people to seize the hour.
谜语小小骏马不停蹄， 日日夜夜不休息， 蹄声哒哒似战鼓， 提醒人们争朝夕。 猜一物。
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