Because I’m an individualist libertarian who cares deeply about the single greatest engine of human progress in the history of Earth: Western European Civilization, and its greatest modern expression: the United States of America, I’ve spent a fair bit of time thinking about how individualism intersects with duty.
On my view Ayn Rand was correct in pointing out that when people begin chattering about ‘the common good’ and ‘social responsibilities’ they’re usually trying to trick you into forging the instruments of your own destruction. On the other hand, I have come to believe that there are several legitimate ways of thinking about a generalized ‘duty’ to civilization.
The first is to conceive of civilization as an unearned and un-earnable endowment. Like a vast fortune built by your forebears, Western Civilization provided the spiritual, philosophical, scientific, and technological framework which lifted untold billions out of poverty and put footprints on the moon. I am a son and heir of that tradition, and as such I have the same duty to it as I would to a $1 billion dollar deposit into my bank account on my eighteenth birthday: to become worthy of it.
That means: to cherish it as the priceless inheritance it is, to work to understand it, exalt in it, defend it, and improve it.
These last two dovetail into the second way of thinking about a responsibility to civilization. Duties are anchors tying us to the things we value. If you say you value your child’s life but are unwilling to work to keep her alive, then you’re either lying to me or lying to yourself. If you say you value knowledge but can’t be bothered to crack open a book, then you’re either lying to me or lying to yourself.
Having been born in the majesty and splendor of Europa, and being honest enough to see what she is worth, it is my personal, individual duty to defend her against the onslaughts of postmodernism, leftism, islamofascism, and the gradual decline that comes when a steadily-increasing fraction of her heirs become spoiled children unable to begin to conceive of what would happen if her light should go out.
But individualism and the right of each individual person to their own life are cornerstones of the Western European endowment. The key, then, is not to surrender individualism to a jack-booted right-wing collectivism, but to understand how the best representatives of a civilization keep it alive in their words and deeds. A civilization is like a God whose power waxes and wanes in direct proportion to the devotion of its followers. But a devotion born of force and fraud is a paltry thing indeed.
Let us speak honestly and without contradict about individual rights and duties, secure in the knowledge that the *only* way to maintain freedom is to know the price that must be paid to sustain its foundation, and to know the far greater price to be paid for its neglect.
 This is not to say that kindness, compassion, and basic decency are unimportant.