One ought never to turn one's back on a threatened danger and try to run away from it. If you do that, you will double the danger. But if you meet it promptly and without flinching, you will reduce the danger by half.
不要等待机会,要创造机会。
在数学中,从问题到答案的旅程往往比答案本身更具启发性。
The only limits you have are the ones you set for yourself.
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.