释义：通过分析物品的过剩与短缺，就能判断其价值的高低。这句话揭示了市场供求关系对价格的影响。

变化不仅仅是生活的必要——它就是生活。

机器学习成功的关键不仅仅是算法，还有数据。

我希望法国与自己和解。

唱歌不仅仅是唱准音符，更是传递触动灵魂的情感。

We must be free not because we claim freedom, but because we practice it.

Sometimes the right path is not the easiest one.

Grow old along with me! The best is yet to be, the last of life, for which the first was made.

关键在于不断进步，持续努力。