Mathematics is the language with which God has written the universe.
世界不是它看起来的样子;它是我们相信的样子。
当没有人相信你时,你必须相信自己。
Success is not final, failure is not fatal: It is the courage to continue that counts.
最好的领导者是那些倾听所有利益相关者而不仅仅是股东的人。
It is not shame for a man to learn that which he knows not,whatever his age.