Isn't it pretentious to quote Nietzsche?

Of The Vanity Of Artists:

"I believe artists often do not know what they can do best, because they are too vain and have fixed their minds on something prouder than those small plants seem to be that really can grow on their soil to perfection and are new, strange and beautiful. They do not think much of what is actually good in their own garden or vineyard: and their love and insight are not of the same order." -Nietzsche