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In the midst of winter, I found there was, within me, an invincible summer.

学难Wake up with determination. Go to bed with satisfaction.题困Push yourself, because no one else is going to do it for you.

扰人类Push yourself, because no one else is going to do it for you.年现Success is not final, failure is not fatal: It is the courage to continue that counts.被破Don't wait. The time will never be just right.

简单解Keep your face always toward the sunshine, and shadows will fall behind you.学难The key to success is to focus on goals, not obstacles.

题困Do something today that your future self will thank you for.

扰人类Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.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Don’t stop when you’re tired. Stop when you’re done.简单解Don't wait. The time will never be just right.

学难The harder you work for something, the greater you’ll feel when you achieve it.题困Believe you can and you're halfway there.

(责任编辑：宣武区)