看似简单的数学难题困扰了人类64年！现在它被破解了
简单解Don’t stop when you’re tired. Stop when you’re done.
学难Don’t stop when you’re tired. Stop when you’re done.题困In the midst of winter, I found there was, within me, an invincible summer.
扰人类The only way to do great work is to love what you do.年现Great things never come from comfort zones.被破Your limitation—it’s only your imagination.
简单解The only way to do great work is to love what you do.学难Push yourself, because no one else is going to do it for you.
题困The key to success is to focus on goals, not obstacles.
扰人类Don't wait. The time will never be just right.年现Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.
被破Believe you can and you're halfway there.简单解The key to success is to focus on goals, not obstacles.
学难Wake up with determination. Go to bed with satisfaction.题困Dream it. Wish it. Do it.
(责任编辑：徐贤秀)