"By humility and the fear of the lord are riches, honour and life" - Proverbs 22:4
Why is it that we are directed to 'fear the lord' here will be the question arising in the minds of most. Well, I answer this by what I have derived from my interpretations and that is- only those who lack wisdom have to be asked to fear the lord to make them act in accordance with morals. And those, who are already wise themselves 'feel' that their actions must be humane and must never compromise with their ethics and hence they needn't be asked to fear the lord.