(noun) The act of binding oneself by a social, legal, or moral tie to someone.
"There is no sin except stupidity."
"I became convinced that noncooperation with evil is as much a moral obligation as is cooperation with good."
"Remember always that you not only have the right to be an individual you have an obligation to be one."
"Your mind is your predicament. It wants to be free of change. Free of pain, free of the obligations of life and death. But change is law and no amount of pretending will alter that reality."