0 people in an organization whose work is not seen by or is kept secret from the public -- 幕后策划人;智囊人物
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
再长的路,一步步也能走完,再短的路,不迈开双脚也无法到达。