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

下的学The harder you work for something, the greater you’ll feel when you achieve it.读懂的生Keep your face always toward the sunshine, and shadows will fall behind you.前古Don’t stop when you’re tired. Stop when you’re done.

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

下的学Great things never come from comfort zones.

读懂的生It’s going to be hard, but hard does not mean impossible.前古Don't wait. The time will never be just right.

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

下的学The way to get started is to quit talking and begin doing.读懂的生Your limitation—it’s only your imagination.

(责任编辑：太原市)