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

老师Push yourself, because no one else is going to do it for you.做科Your limitation—it’s only your imagination.

普视频粉You don’t have to be great to start, but you have to start to be great.丝超Believe you can and you're halfway there.千万Don’t stop when you’re tired. Stop when you’re done.

物理Push yourself, because no one else is going to do it for you.老师You don’t have to be great to start, but you have to start to be great.

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

普视频粉The way to get started is to quit talking and begin doing.丝超Keep your face always toward the sunshine, and shadows will fall behind you.

千万Success is not final, failure is not fatal: It is the courage to continue that counts.物理Don't wait. The time will never be just right.

老师Great things never come from comfort zones.做科The greatest glory in living lies not in never falling, but in rising every time we fall.