The only limit to our realization of tomorrow is our doubts of today.

我在数学上花费的时间越多，我就越感到兴奋。

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

对自身的优点，要掩藏几分，这是用涵养化育来培养深沉的品格；对别人的缺点，要掩藏几分，这是用朴实厚重来造就博大的胸怀。

有时你可能会觉得自己不够好，但你必须记住你是上帝的孩子，你被爱着。

我告诉你，德并不是用钱买来的，但是德却可以带来金钱。

I’ve always been an optimist and I suppose that is rooted in my belief that the power of creativity and intelligence can make the world a better place.