How to add proverbs and idioms to English composition? For example, when writing a Chinese composition, when we want to quote proverbs, we usually have "the so-called" "the old saying has a cloud" "once heard a saying" "there is a proverb saying like this." How to write these things before quotation in English?

How to add proverbs and idioms to English composition? For example, when writing a Chinese composition, when we want to quote proverbs, we usually have "the so-called" "the old saying has a cloud" "once heard a saying" "there is a proverb saying like this." How to write these things before quotation in English?

As the (old) saying goes...
A saying goes like this...

Can you tell me some common phrases in English writing?
It is required to improve the literary style, such as: in fact, observably and so on

You need a conjunction
Otherwise unless there fore therefore never the less
In addition

Advanced words and phrases commonly used in English composition

The more ~ the more ~ a good teacher is the one from whom the more we need academically, the more she can supply