一知半解,自欺欺人

a little knowledge is a dangerous thing.

a little pot is soon hot.
狗肚子盛不得四两油。
all are brave when the enemy flies.
敌人逃窜时,人人都成了勇士。
all good things come to an end.
天下没有不散的筵席。
all rivers run into sea.
海纳百川。
all roads lead to rome.
条条大路通罗马。
all that ends well is well.
结果好,就一切都好。
all that glitters is not gold