The following are some famous sayings lamenting the passage of time:

Time flies, and the years fly by. ——"Three Heroes and Five Righteousness" by Shi Yukun of the Qing Dynasty

Every year comes with gray hair, and spring will come again in a hurry. ——From Yu Qian's "Reminiscences of the Beginning of Spring"

The dust of horses and carriages is disturbed by the merciless years, and the youth is hidden. ——Jin Yuanhaowen's "Yu Leuchi·Yong Cup"

If life is just like the first time we met, why is the autumn wind so sad and painted on the fan. ——Nalan Xingde of the Qing Dynasty, "Mulan Ci·Naigu Jue Jue Ci Cambodian Friends"

The gap between heaven and earth in life is as sudden as the passing of a white horse. ——Excerpted from "Zhuangzi·Waipian·Zhibeiyou"

Sending a mayfly to the heaven and earth is a drop in the vast ocean. ——Su Shi's "Red Cliff Ode" of the Song Dynasty

Time is like an arrow urging people to grow old, and the sun and the moon are like shuttles for young people. ——Yuan Gaoming's "The Story of Pipa·The Prime Minister's Daughter"