原文：

司马温公幼时，患记问不若人，群居讲习，众兄弟既成诵，游息矣；独下帷绝编，迨能倍诵乃止。用力多者收功远，其所精诵，乃终身不忘也。温公尝言：“书不可不成诵，或在马上，或中夜不寝时，咏其文，思其义，所得多矣。”

问题与答案：

1. 司马温公为何感到忧虑？

答：司马温公幼时因为记忆力不如别人而感到忧虑。

2. 他是如何克服这一困难的？

答：他独自闭门苦读，直到能够熟练背诵才停止。

3. 这个故事告诉我们什么道理？

答：这个故事告诉我们勤奋学习的重要性，只有努力才能取得好的成果。

4. 温公认为读书有什么好处？

答：他认为书不能不背诵，在骑马或半夜不睡觉的时候，吟诵文章思考其意义，会得到很多收获。

翻译：

When Sima Wen Gong was young, he worried that his memory was not as good as others. While the other brothers played after reciting their lessons, he continued studying alone. He would keep reading until he could recite the text perfectly from memory. His hard work paid off, and what he memorized remained with him for life. Sima Wen Gong once said: "Books should not be read without memorizing. Whether on horseback or in the middle of the night when you can't sleep, recite the text and ponder its meaning, and you will gain much."

这篇故事通过讲述司马光年轻时克服自身弱点的经历，强调了勤奋学习的重要性，同时也提醒我们即使天资不足，通过后天的努力同样可以取得成功。