数学的本质在于它的自由。
成功的真正标准不仅仅是利润，而是你对人和环境产生的影响。
You have to believe in yourself when no one else does—that's what makes you a winner.
The most beautiful things in life are not things, but moments and emotions.
The wisdom of hindsight, so useful to historians and indeed to authors of memoirs, is sadly denied to practising politicians.
"I am not defined by my past. I am driven by my future."