Student

Do you capitalize the first letter inside the quotation marks?

[mykwyner]

Not every time, only at the start of a quoted sentence. If you interrupt a quote, the second part of a sentence would not be capitalized.

"The crux of the biscuit," a wise man once told me, "is the apostrophe."

If you are reporting a sentence fragment, use the ellipsis mark (...) to indicate the missing words.

I heard Frank muttering something under his breath, "...not very nice," was all I heard.

[Mariner]

However, if the original quotation was capitalized, you must indicate that like this:

Example:
Original text:
The man was above that.

Your text:
John Williams argues that "[t]he man was above that"