The human psychic is created so that one accepts his/her limits and at the same time he/she does not want to hear anything about them, thus the existence of an internal cleavage, the existential tensions and a deep ambivalence in our being.

Quote from Hugues Draelants - Bavardages dans les salons du net

And another one:

One of culture’s functions is to create social connections; culture associates and differentiates. Culture allows people to recognize one another or not to recognize one another. Defining a culture is in sequence including and excluding. One defines him/herself in relation to something, one separates an “Us” as opposed to a “Them”, or draws a line, a frontier. This leads to cohesion.

In the same way, when using “I”, one discovers the dimension of a latent “Us”. The “I” is always included in a group, a class, a family, a registration, it carries its own personal identity […] The social connections are established at different levels of the global society, one’s identity is multiple.