Authors:

What [Nietzsche] calls slave morality is to him purely spite-morality; and this spite-morality gave new names to all ideals. Thus impotence, which offers no reprisal, became goodness; craven baseness became humility; submission to him who was feared became obedience; inability to assert one's self became reluctance to assert one's self, became forgiveness, love of one's enemies. Misery became a distinction

Georg Brandes (2015). “Friedrich Nietzsche (English Edition)”, p.17, WILLIAM HEINEMANN
What [Nietzsche] calls slave morality is to him purely spite-morality; and this spite-morality gave new names to all ideals. Thus impotence, which offers no reprisal, became goodness; craven baseness became humility;