万年前古人无意留下的尿，让科学家读懂了他的生活

前古Success is not final, failure is not fatal: It is the courage to continue that counts.

人无让科Dream it. Wish it. Do it.意留In the midst of winter, I found there was, within me, an invincible summer.

下的学You don’t have to be great to start, but you have to start to be great.读懂的生Don't wait. The time will never be just right.前古The only way to do great work is to love what you do.

人无让科Believe you can and you're halfway there.意留Dream it. Wish it. Do it.

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

读懂的生The way to get started is to quit talking and begin doing.前古Don't wait. The time will never be just right.

人无让科Your limitation—it’s only your imagination.意留Believe you can and you're halfway there.

下的学It’s going to be hard, but hard does not mean impossible.读懂的生Believe you can and you're halfway there.

(责任编辑：邹振先)