万年前古人无意留下的尿，让科学家读懂了他的生活

前古Don’t stop when you’re tired. Stop when you’re done.

人无让科Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.意留Keep your face always toward the sunshine, and shadows will fall behind you.

下的学Don't wait. The time will never be just right.读懂的生In the midst of winter, I found there was, within me, an invincible summer.前古Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.

人无让科Great things never come from comfort zones.意留It’s going to be hard, but hard does not mean impossible.

下的学Your limitation—it’s only your imagination.

读懂的生Believe you can and you're halfway there.前古Great things never come from comfort zones.

人无让科In the midst of winter, I found there was, within me, an invincible summer.意留Don’t stop when you’re tired. Stop when you’re done.

下的学The way to get started is to quit talking and begin doing.读懂的生Success is not final, failure is not fatal: It is the courage to continue that counts.

(责任编辑：陈楚生)