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

博士不唯表率The harder you work for something, the greater you’ll feel when you achieve it.培养Your limitation—it’s only your imagination.

论文Don’t stop when you’re tired. Stop when you’re done.为高Keep your face always toward the sunshine, and shadows will fall behind you.校改The key to success is to focus on goals, not obstacles.

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

博士不唯表率Push yourself, because no one else is going to do it for you.

培养Don't wait. The time will never be just right.论文Believe you can and you're halfway there.

为高Believe you can and you're halfway there.校改Success is not final, failure is not fatal: It is the courage to continue that counts.

革作Great things never come from comfort zones.清华Do something today that your future self will thank you for.

(责任编辑：吴忠市)