前人铺路，后人行路。

One generation builds the street that the next will travel on.

Source: Tatoeba

Sentence Composition

1 前人 qiánrén
  1. predecessor
  2. forebears
  3. the person facing you
2 铺路 pūlù
  1. to pave (with paving stones)
  2. to lay a road
  3. (fig.) to lay the groundwork (for sth)
  4. to give a present to sb to ensure success
3 后人 hòurén later generation
4 行路 xínglù
  1. to travel
  2. transport