We know from experience that no one can adequately grasp the objective
world in its full reality all on his own, because the world always shows
and reveals itself to him from only one perspective, which corresponds
to his standpoint in the world and is determined by it. If someone wants
to see and experience the world as it "really" is, he can do so only by
understanding it as something that is shared by many people, lies
between them, separates and links them, showing itself differently to
each and comprehensible only to the extent that many people can talk
about it and exchange their opinions and perspectives with one another,
over against one another. Only in the freedom of our speaking with one
another does the world, as that about which we speak, emerge in its
objectivity and visibility from all sides.
-- Hannah Arendt
The Promise of Politics (2005) p. 128.