You can imagine a culture as a correlate to self-sufficient economy where everyone could collect information and create works solely by himself without any communication with the others. Actually, however, we exchange commodities through money and views through language.

What is definition? This is a question hard to answer. This requires the definition of definitions. You must know what a definition is before defining definitions. To get out of this circulation, let's first follow the traditional definition and then examine the validity of it.

Existence and essence is a theme of existentialism, but here I will examine the relation between them from the viewpoint of linguistic philosophy.

The usage of the pronoun I is not innate but acquired. At first, Infants use their proper names to refer to themselves. It is so difficult to master the usage of I that it takes a long time for infants to know how to use the first-person pronoun. When, how and why did we get to use the first-person pronoun?

We come across two sorts of incompleteness if you regard language as means to represent the world faithfully and communicate it to others. This incompleteness is, however, necessary for us.