多多益善
The more the better.
All is fish that comes to his net.
All's grist that comes to the mill.
eg:Your donation, the more the better, helps the poor children to attend schools.
中英俚语俗语来源:史记·淮阴侯传:“上问曰,如我能将几何,信曰,不过十万,上曰,于君何如,曰,臣多多益善耳。”