生命中最伟大的荣耀不在于永不跌倒,而在于每次跌倒后都能站起来。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
"Writing is a form of therapy; sometimes I wonder how all those who do not write, compose, or paint can manage to escape the madness, melancholia, the panic and fear which is inherent in a human situation."