北大逼Don’t stop when you’re tired. Stop when you’re done.

学生The harder you work for something, the greater you’ll feel when you achieve it.胡适汗流The way to get started is to quit talking and begin doing.

夹背Don’t stop when you’re tired. Stop when you’re done.北大逼The way to get started is to quit talking and begin doing.学生Success is not final, failure is not fatal: It is the courage to continue that counts.

胡适汗流Keep your face always toward the sunshine, and shadows will fall behind you.夹背Keep your face always toward the sunshine, and shadows will fall behind you.

北大逼In the midst of winter, I found there was, within me, an invincible summer.

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

夹背Your limitation—it’s only your imagination.北大逼Believe you can and you're halfway there.

学生Push yourself, because no one else is going to do it for you.胡适汗流Don’t stop when you’re tired. Stop when you’re done.

(责任编辑：杨宝森)