When I want to encourage others to be positive and enterprising, what time-honored saying can I use?

If you don’t accumulate steps, you can’t reach a thousand miles; if you don’t accumulate small streams, you can’t become a river. ——Xun Kuang

If you persevere, the rotten wood will not break; if you persevere, the metal and stone can be carved. ——Xun Kuang

Tomorrow comes tomorrow, and there are so many tomorrows. If I live and wait for tomorrow, everything will be wasted. If the world is tired of tomorrow, spring will pass and autumn will come, and old age will come. In the morning, you can see the water flowing eastward, and in the evening, you can see the sun setting in the west. How many tomorrows can there be in a hundred years? Please listen to my song of tomorrow. (Wen Jia's "Song of Tomorrow")

Today is the same as today, how little today is! If you don’t do it today, when will this happen? It is a pity that today is not the day of a hundred years of life! If Yangu waits for the arrival of the Ming Dynasty, there will be Ming Dynasty affairs in the Ming Dynasty. I will compose today's poem for you. Please start working hard today. (Wen Jia's "Today's Poems")

Lao Ranran is coming, and he is afraid that he will not be able to cultivate his reputation.

--Warring States Chu·Qu Yuan