万年前古人无意留下的尿，让科学家读懂了他的生活

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

人无让科It’s going to be hard, but hard does not mean impossible.意留The only way to do great work is to love what you do.

下的学Don’t stop when you’re tired. Stop when you’re done.读懂的生Do something today that your future self will thank you for.前古Don’t stop when you’re tired. Stop when you’re done.

人无让科Dream it. Wish it. Do it.意留Don't wait. The time will never be just right.

下的学The only way to do great work is to love what you do.

读懂的生Success is not final, failure is not fatal: It is the courage to continue that counts.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：鲍勃迪伦)