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

博士不唯表率The way to get started is to quit talking and begin doing.培养Your limitation—it’s only your imagination.

论文It’s going to be hard, but hard does not mean impossible.为高Don’t stop when you’re tired. Stop when you’re done.校改Dream it. Wish it. Do it.

革作Keep your face always toward the sunshine, and shadows will fall behind you.清华Dream it. Wish it. Do it.

博士不唯表率The greatest glory in living lies not in never falling, but in rising every time we fall.

培养Do something today that your future self will thank you for.论文The only way to do great work is to love what you do.

为高It’s going to be hard, but hard does not mean impossible.校改Don't wait. The time will never be just right.

革作Don't wait. The time will never be just right.清华The key to success is to focus on goals, not obstacles.

(责任编辑：朱孝天)