百川歸海
Follow the river and you'll get to the sea.
The sea refuses no river.
All rivers do what they can for the sea.
All roads lead to Rome.
eg:To find the cause is easy as you follow the river and you'll get to the sea.
中英俚語俗語來源:淮南子·論訓"百川異源,而皆歸于海。 "
同義詞:殊途同歸 There are more ways to the wood than one.