他的决定是公正的。

Tā de juédìng shì gōngzhèng de.

His decision is fair.

法庭判决应该是公正的。

Fǎtíng pànjué yīnggāi shì gōngzhèng de.

Court judgments should be just and fair.

他一直主张公正对待每个人。

Tā yīzhí zhǔzhāng gōngzhèng duìdài měi gè rén.

He has always advocated treating everyone fairly.