过去总是在倾听，等待我们转身，以便在我们耳边低语。

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.

美不是事物本身的品质：它存在于凝视它们的头脑中。

质量是我们产品的灵魂，诚信是我们事业的根基。