在古代，有两位年长的学者，他们互相约定要攀登五岳之首的泰山。这两位老者虽然年事已高，但他们的志向和毅力却十分坚定。

原文如下：

昔有二叟，同居乡里。一日，叟甲谓叟乙曰：“吾闻泰山之雄伟，欲往登之。”叟乙应曰：“吾亦愿往。”于是二人相约而行。途中，遇险阻，叟甲曰：“吾年迈力衰，恐难登顶。”叟乙笑曰：“吾与君共勉，何惧之有？”终至山顶，俯瞰群山，心旷神怡。

翻译如下：

Once upon a time, there were two old men living in the same village. One day, Old Man A said to Old Man B: "I have heard that Mount Tai is magnificent, and I want to go and climb it." Old Man B replied: "I also wish to go." So they made an appointment and set out together. On the way, they encountered obstacles. Old Man A said: "I am old and weak, and I fear I may not be able to reach the summit." Old Man B smiled and said: "Let us encourage each other, what do we have to fear?" Finally, they reached the top of the mountain, looked down at the surrounding peaks, and felt refreshed and delighted.

这个故事告诉我们，无论年龄大小，只要有决心和伙伴的支持，就能克服困难，实现目标。