上天无路，入地无门。

There is no path to Heaven one can go, no door to Earth that one can enter.

牛郎上天无路，仍是老牛告诉牛郎，在它死后，可以用它的皮做成鞋，穿戴就可以上天。

Niu Lang had no way to heaven. And the cattle told him that he could make shoes using its skin after it died and wore the shoes to go to heaven.