0 the principles on which future behaviour is based: --
In all relationships a few ground rules have to be established.
1 the basic rules for doing something: --
We set very strict ground rules for the interviews.
2 the rules on which a person or organization bases their behaviour: --
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.