世界上充满了等待被讲述的隐形故事。

大地赐予我们宝藏，但我们的责任是回馈多于索取。

每个家庭都有自己的秘密，但在某些国家，这些秘密更大、更危险。

数学中的每个问题都是一个等待解决的谜题，而乐趣就在于解决的过程。

Success is measured not by profits alone, but by the positive impact we leave behind.

Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.