城市的穷人就像树的根；看不见，但对它的生命至关重要。

When life seems hard, the courageous do not lie down and accept defeat; instead, they are all the more determined to struggle for better future.

The world breaks everyone, and afterward, many are strong at the broken places.

预测未来的最好方法就是发明它。

If you can't fly then run， if you can't run then walk， if you can't walk then crawl， but whatever you do you have to keep moving forward.