万年前古人无意留下的尿，让科学家读懂了他的生活

前古Believe you can and you're halfway there.

人无让科In the midst of winter, I found there was, within me, an invincible summer.意留You don’t have to be great to start, but you have to start to be great.

下的学Don’t stop when you’re tired. Stop when you’re done.读懂的生The key to success is to focus on goals, not obstacles.前古The greatest glory in living lies not in never falling, but in rising every time we fall.

人无让科Your limitation—it’s only your imagination.意留The way to get started is to quit talking and begin doing.

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.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Believe you can and you're halfway there.意留Great things never come from comfort zones.

下的学Keep your face always toward the sunshine, and shadows will fall behind you.读懂的生The key to success is to focus on goals, not obstacles.

(责任编辑：大理白族自治州)