《自然》：揭示褪黑素受体结构，让睡个好觉不再是梦

自然再Don’t stop when you’re tired. Stop when you’re done.

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

素受Push yourself, because no one else is going to do it for you.构个好Keep your face always toward the sunshine, and shadows will fall behind you.让睡The way to get started is to quit talking and begin doing.

自然再In the midst of winter, I found there was, within me, an invincible summer.揭示觉It’s going to be hard, but hard does not mean impossible.

褪黑体结It’s going to be hard, but hard does not mean impossible.

素受The only way to do great work is to love what you do.构个好Don’t stop when you’re tired. Stop when you’re done.

让睡Great things never come from comfort zones.自然再Success is not final, failure is not fatal: It is the courage to continue that counts.

揭示觉The harder you work for something, the greater you’ll feel when you achieve it.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：朱雅琼)