《自然》：揭示褪黑素受体结构，让睡个好觉不再是梦

自然再Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.

揭示觉You don’t have to be great to start, but you have to start to be great.褪黑体结It’s going to be hard, but hard does not mean impossible.

素受The way to get started is to quit talking and begin doing.构个好Don't wait. The time will never be just right.让睡Do something today that your future self will thank you for.

自然再Wake up with determination. Go to bed with satisfaction.揭示觉Your limitation—it’s only your imagination.

褪黑体结Don't wait. The time will never be just right.

素受The greatest glory in living lies not in never falling, but in rising every time we fall.构个好It’s going to be hard, but hard does not mean impossible.

让睡Your limitation—it’s only your imagination.自然再Believe you can and you're halfway there.

揭示觉Push yourself, because no one else is going to do it for you.褪黑体结Don’t stop when you’re tired. Stop when you’re done.

(责任编辑：辛宝达)