It is not our part to master all the tides of the world, but to do what is in us for the succour of those years wherein we are set, uprooting the evil in the fields that we know, so that those who live after may have clean earth to till. What weather they shall have is not ours to rule. — The Return of the King

My Take – I cannot and will not always be there for my children.  The best I can do for them is shield them from the world as best I can while they grow, but lift that shield when it is appropriate so that they may mature.  If I send them out into the world able to stand on their own feet, provide for them and theirs, and spit in the eye of anyone who dares challenge them, then I will have done my job.