Fact is fact.

事实毕竟是事实。

Facts are stubborn things.

事实是最顽强的东西。

Seek the truth from the facts.

实事求是。

Facts are stronger than words.

事实胜于雄辩。

Facts speak louder than eloquence.

事实胜于雄辩。

A single fact is worth a shipload of arguments.

事实胜于雄辩。