Does anyone know where shakespeares quotes are used today?

Answer 1

Persuasive speeches and articles use them.

The use of such can make the author appear more scholarly, illustrate how old a particular concept or thought is, and sometimes, the quote is simply the best way to express the idea presented.

Answer 2

That's a pretty sweeping question.
You'll have to be more specific.

One of his sonnets is very popular for weddings.
"Let me not to the marriage of true minds admit impediment..."
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