The Duties of the Heart, by Rabbi Bachye, tr. by Edwin Collins, [1909], at sacred-texts.com
Where Humility is Sin
In matters of religion, justice, and of right and wrong, however, the meek will be high-spirited and fearless, punishing the wicked without fear or favour. He will never behave oppressively out of fear lest he might suffer oppression; but he will rescue the oppressed and help to bring him out of the power of the oppressor; and he will teach men to do right, and warn them against evil, to the utmost of his power.