物理Push yourself, because no one else is going to do it for you.

老师Keep your face always toward the sunshine, and shadows will fall behind you.做科You don’t have to be great to start, but you have to start to be great.

普视频粉Dream it. Wish it. Do it.丝超The harder you work for something, the greater you’ll feel when you achieve it.千万The only way to do great work is to love what you do.

物理Believe you can and you're halfway there.老师The way to get started is to quit talking and begin doing.

做科Don’t stop when you’re tired. Stop when you’re done.

普视频粉It’s going to be hard, but hard does not mean impossible.丝超The key to success is to focus on goals, not obstacles.

千万Your limitation—it’s only your imagination.物理Believe you can and you're halfway there.

老师Push yourself, because no one else is going to do it for you.做科In the midst of winter, I found there was, within me, an invincible summer.