The private law consists of principles and rules.

私法是由原则与规则组成的。

Directly applicable law is a new system in international private law.

直接适用的法是国际私法中一项新的制度。

Marriage is a contract in private law, and an arrangement of institution.

婚姻是私法上的契约，也是制度的安排。

Modern theory of law divides it into public law, private law and social law.

现代法学应当将法律分为公法、私法与社会法，这就是三元法律结构。

Contracts consist of discrete contract and socialized contract in private law.

私法领域中的契约分为个别性契约和社会化契约。