Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
家不是一个地方,而是一种感觉。
成功不是终点,失败也不是致命的:重要的是继续前进的勇气。
歌唱90%在于倾听。你也必须倾听寂静。
"Some infinities are bigger than other infinities."