It is a sad fate for a man to die too well known to everybody else and still unknown to himself.

数学之美在于它能够以精确而优雅的方式描述世界。

Don't be afraid of making mistakes, be afraid of not learning.

图片Fear is whispered in our ears and shouted in our faces. Faith must be fostered by the man or woman you see every day in the mirror. The former forever snaps at our heels and delays our course. The latter can spur our boot heels to be wandering, stimulate our creativity and drive us forward.

身份是我们讲给自己听的故事，有时我们必须重写它。