thanks for providing such a handy detail about paragraph expansion. As far as i know a quotation or proverb explained must contain the following elements in the following format to get the attention of the reader:

1- convey the meaning in easy and clear words of the given proverb, quotation and sentence. If u know the reference then provide it: that it is a verse from Holy Bible or saying of Bernard Shaw or William Shakespeare.

2- after conveying the meaning, you can provide 3-4 sentences in its brief explanation. it depends on you to agree or disagree the given statement. But for that u must have strong logic and arguments

3- after that provide relevant example from the history, any incident that expresses that saying well and relevant to it

4- its better to provide example from your own society. If saying is about poverty or corruption or any other background then relate it to your own country

5- in the end, you can conclude it with ur own conclusion. in the background of arguments u have provided.

best of luck

__________________
"Rishtoon ki khoobsurti aik dosry ki baat ko bardasht kerna hay.
Be-aib insaan talaash mat kero, warna akele reh jao gay."
Hazrat Ali (R.A)