儿童有一种特殊的敏感性，集中体现他去吸收周围的一切。

Le crime fait la honte, et non pas l'échafaud.

The only limit is the one you set yourself.

Collaboration in mathematics is essential; the exchange of ideas leads to breakthroughs that no single mind could achieve alone.

The essence of mathematics lies in its power to reveal patterns and symmetries.

如果我们让过去和现在争吵，我们将失去未来。