Marry in lent,and you'll live to repent.

借债结婚，一生悔恨。

New lords,new laws.

新君立新法。

One half of the world does not know how the other half lives.

贫富不相知。

Speech shows what a man is.

言如其人。

The lion is known by his claws (paw).

狮以爪闻名。

The outsideer sees the best (or most) of the game.

旁观者清。