When we survey our lives...we soon observe that
almost the whole of our actions and desires are bound up with the
existence of other human beings...
We eat food that others have grown,
wear clothes that others have made, live in houses that others have
built.
The greater part of our knowledge and beliefs has been
communicated to us by other people through...language which others have
created.
Without language our mental capacities would be poor indeed...
The individual, if left alone from birth would remain primitive and
beast-like in his thoughts and feelings to a degree that we can hardly
conceive.
The individual is what he is and has the significance that he
has, not so much in virtue of his individuality, but rather as a member
of a great human society.
- Albert Einstein -

