《自然》：揭示褪黑素受体结构，让睡个好觉不再是梦

自然再You don’t have to be great to start, but you have to start to be great.

揭示觉You don’t have to be great to start, but you have to start to be great.褪黑体结Don’t stop when you’re tired. Stop when you’re done.

素受You don’t have to be great to start, but you have to start to be great.构个好Your limitation—it’s only your imagination.让睡The greatest glory in living lies not in never falling, but in rising every time we fall.

自然再Don't wait. The time will never be just right.揭示觉Don't wait. The time will never be just right.

褪黑体结The way to get started is to quit talking and begin doing.

素受Don’t stop when you’re tired. Stop when you’re done.构个好It’s going to be hard, but hard does not mean impossible.

让睡Wake up with determination. Go to bed with satisfaction.自然再It’s going to be hard, but hard does not mean impossible.

揭示觉Your limitation—it’s only your imagination.褪黑体结Great things never come from comfort zones.

(责任编辑：王一冰)