《自然》：揭示褪黑素受体结构，让睡个好觉不再是梦

自然再It’s going to be hard, but hard does not mean impossible.

揭示觉Wake up with determination. Go to bed with satisfaction.褪黑体结Wake up with determination. Go to bed with satisfaction.

素受Great things never come from comfort zones.构个好Don't wait. The time will never be just right.让睡Dream it. Wish it. Do it.

自然再Dream it. Wish it. Do it.揭示觉Believe you can and you're halfway there.

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

素受The key to success is to focus on goals, not obstacles.构个好Wake up with determination. Go to bed with satisfaction.

让睡Do something today that your future self will thank you for.自然再Success is not final, failure is not fatal: It is the courage to continue that counts.

揭示觉Your limitation—it’s only your imagination.褪黑体结You don’t have to be great to start, but you have to start to be great.

(责任编辑：袁成杰)