A paradox is speech that contradicts itself but may be true nevertheless.

If I do, where do I put a comma?

No comma is needed.

Oh, okay. Thanks!

You're welcome.

http://grammar.ccc.commnet.edu/grammar/commas.htm

I agree with Ms. Sue that no commas are needed here, but you may want to bookmark the above linked webpage for future reference. Be sure to read the whole thing... don't miss the ones at the very bottom!!

Determining where to place a comma can depend on the specific sentence and its intended meaning. However, in the sentence you provided, it seems that you're asking where to place a comma in the phrase "A paradox is speech that contradicts itself but may be true nevertheless." Let's break down the sentence to identify potential comma placements:

"A paradox is speech that contradicts itself but may be true nevertheless."

There are a couple of options for comma placement in this sentence. One option is to use a comma before the conjunction "but," as follows:

"A paradox is speech that contradicts itself, but may be true nevertheless."

This placement adds a slight pause before the contrasting idea. It can help clarify the distinction between the contradictory nature of a paradox and its potential truth.

However, if you prefer a smoother flow without a pause, you can omit the comma altogether:

"A paradox is speech that contradicts itself but may be true nevertheless."

In this case, the absence of a comma makes the sentence read more seamlessly, connecting the contradictory nature and the possibility of truth.

Ultimately, the decision to use a comma may vary based on personal preference, emphasis, or style guidelines. It's essential to consider the intended meaning of the sentence and select the comma placement that best conveys your message.