• действовать добросовестно и разумно – act in good faith and reasonably
См. также: действие в пространстве, действовать ненадлежащим образом, действующий договор, действующий с
It is implicit within all contracts that the parties are acting in good faith. For example, if the seller of a "mustang" knows that the buyer thinks he is purchasing a car, but secretly intends to sell the buyer a horse, the seller is not acting in good faith and the contract will not be enforceable. (expertlaw.com)
