数学的乐趣在于发现的旅程，而不仅仅是目的地。

True leadership means making tough decisions today for a better tomorrow.

The key to success is to keep growing in all areas of life - mental, emotional, spiritual, as well as physical.

选择朋友要慢，改换朋友要更慢。

我们都在阴沟里，但仍有人仰望星空。