扩展的艺术概念是必要的。
The progress of mathematics is measured by the number of problems it can solve.
每个人都是一个宇宙，每个故事都是那个宇宙中的一颗星星。
You are never too old to chase your dreams.
The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.