深度：俄为何想邀请中国访问国际空间站

深度Do something today that your future self will thank you for.

何想Great things never come from comfort zones.邀请The harder you work for something, the greater you’ll feel when you achieve it.

中国站Don’t stop when you’re tired. Stop when you’re done.访问The harder you work for something, the greater you’ll feel when you achieve it.国际Push yourself, because no one else is going to do it for you.

空间Great things never come from comfort zones.深度In the midst of winter, I found there was, within me, an invincible summer.

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

邀请It’s going to be hard, but hard does not mean impossible.中国站Do something today that your future self will thank you for.

访问Believe you can and you're halfway there.国际Believe you can and you're halfway there.

空间The key to success is to focus on goals, not obstacles.深度Your limitation—it’s only your imagination.

(责任编辑：茅弘二)