All covert all lose.

贪多损失大。

Greed has no limits.

贪得无厌

One cannot eat one's cake and have it.

你不可能在吃蛋糕的同时又拥有它。

A bird in the hand is worth two in the bush.

双鸟在林，不如一鸟在手。（劝告人们不要贪心，应该知足常乐。）

face the music

是指要面对现实，勇于承担后果、接受惩罚；

penance，atonement

赎罪

Steve broke window and had to face the music.

Steve打破了窗户，不得不受点教训。