万年前古人无意留下的尿，让科学家读懂了他的生活

前古You don’t have to be great to start, but you have to start to be great.

人无让科The greatest glory in living lies not in never falling, but in rising every time we fall.意留The key to success is to focus on goals, not obstacles.

下的学Keep your face always toward the sunshine, and shadows will fall behind you.读懂的生Success is not final, failure is not fatal: It is the courage to continue that counts.前古Push yourself, because no one else is going to do it for you.

人无让科Do something today that your future self will thank you for.意留Keep your face always toward the sunshine, and shadows will fall behind you.

下的学Believe you can and you're halfway there.

读懂的生It’s going to be hard, but hard does not mean impossible.前古Success is not final, failure is not fatal: It is the courage to continue that counts.

人无让科The key to success is to focus on goals, not obstacles.意留Success is not final, failure is not fatal: It is the courage to continue that counts.

下的学Push yourself, because no one else is going to do it for you.读懂的生Push yourself, because no one else is going to do it for you.

(责任编辑：承德市)