0 the quality of being very good at noticing and understanding things that many people do not notice: --
The review discussed the film's perceptiveness about human nature.
He gave a performance of extraordinary perceptiveness.
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.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.