有趣的是,对于白人孩子来说,做黑人很酷,直到做黑人变得很难。
The beauty of mathematics is that it is a language that can describe the universe in a way that nothing else can.
The most dangerous phrase in the language is, 'We've always done it this way.'
Success is not final, failure is not fatal: It is the courage to continue that counts.