【每日一句】You can not fly then run

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. 

如果你不能飞，那就跑；如果跑不动，那就走；实在走不了，那就爬。无论怎样，你都要勇往直前。