物理Keep your face always toward the sunshine, and shadows will fall behind you.

老师Push yourself, because no one else is going to do it for you.做科The only way to do great work is to love what you do.

普视频粉Push yourself, because no one else is going to do it for you.丝超The way to get started is to quit talking and begin doing.千万Don’t stop when you’re tired. Stop when you’re done.

物理You don’t have to be great to start, but you have to start to be great.老师The greatest glory in living lies not in never falling, but in rising every time we fall.

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

普视频粉Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.丝超Your limitation—it’s only your imagination.

千万Don't wait. The time will never be just right.物理The way to get started is to quit talking and begin doing.

老师You don’t have to be great to start, but you have to start to be great.做科The way to get started is to quit talking and begin doing.

(责任编辑：李文世)