Intersubjectivity

Intersubjectivity refers to the "common-sense," shared meanings constructed by people in their interactions with each other and used as an everyday resource to interpret the meaning of elements of social and cultural life. 

The French philopsopher Jean-Paul Sartre argued that in making choices in life we effectively make choices for all humans as what is chosen is always the better choice, and what is better for one is better for all. This is also called 'intersubjectivity'.