Instinct gave place temporarily to a system of habits, each one of which became contingent, their convergence of which became contingent, their convergence towards the preservation of society being alone necessary, and this necessity bringing back instinct with it. The necessity of the whole, felt behind the contingency of the parts, is what we call moral obligation in general - it being understood that the parts are contingent in the eyes of society only; to the individual, into whom society inculcates its habits, the part is as necessary as the whole.
With our finite minds we cannot presume to know if there is a Purpose. We sense, however, the presence of something greater than we can comprehend, a force as yet unknown to us - perhaps even to be unknown. So we accept our situation, learn from it, and do the best we can, resting on faith, despair, or cynicism, depending on the individual. Overriding all this must be an obligation - self-imposed or externally impressed - to do the best one can for others, to relieve suffering and to exercise compassion. We are all in this together, for life is a common, not an individual, endeavor.
Your awareness of your self-worth is not a contradiction to the obligation to be humble. Humility is not a lack of awareness of your positive accomplishments and abilities. Only a fool is not aware of what he really is an this is not humility. Humility is the internalized awareness with every fiber of your body that everything, yes everything, you have is not your own. Rather it is a gift from the Almighty who bestowed His kindness on you. The more a person actually feels that what he has is a gift the greater is his humility.
There is no man but for his own interest hath an obligation to be honest. There may; be sometimes temptations to be otherwise; but, all cares cast up, he shall find it the greatest ease, the highest profit, the best pleasure, the most safety, and the noblest fame, to hold the horns of this altar, which in all assays, can in himself protect him.
All times are great exactly in proportion as men feel, profoundly, their indebtedness to something or other... A feeling of immeasurable obligation puts life into a man and fight into him, and joy into him.
We must never try to escape the obligation of living at our best.