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The way to get started is to quit talking and begin doing.意留You don’t have to be great to start, but you have to start to be great.

下的学Success is not final, failure is not fatal: It is the courage to continue that counts.读懂的生Don’t stop when you’re tired. Stop when you’re done.前古Believe you can and you're halfway there.

人无让科Your limitation—it’s only your imagination.意留Wake up with determination. Go to bed with satisfaction.

下的学Don't wait. The time will never be just right.

读懂的生Do something today that your future self will thank you for.前古Believe you can and you're halfway there.

人无让科You don’t have to be great to start, but you have to start to be great.意留The way to get started is to quit talking and begin doing.

下的学The only way to do great work is to love what you do.读懂的生Don’t stop when you’re tired. Stop when you’re done.

(责任编辑：林姗姗)