A poesia é a música da alma, que ecoa no silêncio do coração.

逝者是我们求知路上的无声合作者。

My children taught me that love has no limits.

在这个世界上，没有人能使你倒下，假如你自己的信念还站立的话。

The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

实现明天的唯一限制是我们今天的疑虑。