实现不可能的唯一方法是相信它是可能的。
Simplicity has a way of improving performance by enabling us to better understand what we are doing.
The world is a book, and those who do not travel read only one page.
每一天都是改变生活的新机会。
我认为数学家更像艺术家,而不是科学家。
"A good book is the best of friends, the same today and forever."