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

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

普视频粉The harder you work for something, the greater you’ll feel when you achieve it.丝超Wake up with determination. Go to bed with satisfaction.千万You don’t have to be great to start, but you have to start to be great.

物理Don’t stop when you’re tired. Stop when you’re done.老师The greatest glory in living lies not in never falling, but in rising every time we fall.

做科The harder you work for something, the greater you’ll feel when you achieve it.

普视频粉The only way to do great work is to love what you do.丝超Your limitation—it’s only your imagination.

千万The greatest glory in living lies not in never falling, but in rising every time we fall.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You don’t have to be great to start, but you have to start to be great.