Translation:Sự dũng cảm
"The bravery" would have to refer to some specific instance of bravery and, consequently, would be very less frequent in English than "bravery. "
"Bravery" is an abstract, uncountable noun. We don't use "the" with abstract nouns unless we are distinguishing one particular instance from all others. We say, "BRAVERY is an admirable quality" but "THE BRAVERY of that soldier deserves a medal."
Learning how to use articles is one of the hardest things to learn in English.