Nietzsche says very clearly all the way through his career that if you want to define human nature the first thing you must say is that human beings insist on value--we see the world through value colored eyes. We do not know how to look at things neutrally, value-free. So, it's not a question of giving up all values, it's simply a question of which values.
Robert C. Solomon, Will to Power: The Philosophy of Friedrich Nietzsche
existentialism, nietzsche, nihilism, philosophy, values