Wittgenstein argued that the meaning of a word is not something that is fixed and unchanging, but rather something that is determined by the context in which it is used. This means that the same word can have different meanings in different contexts.

Wittgenstein argued that a picture is a mental representation of an object that can be used to communicate information about that object. A proposition, on the other hand, is a linguistic expression that makes a claim about an object. Propositions can be true or false, while pictures cannot.

Wittgenstein argued that there cannot be a private language that is understood only by one person because there is no way to verify the meaning of the words in such a language. This is because the meaning of a word is determined by the context in which it is used, and there is no way to establish a context for a private language.

Wittgenstein argued that there is a paradox in the idea of following a rule. This is because, in order to follow a rule, we must first understand what the rule means. However, the meaning of a rule is not something that is fixed and unchanging, but rather something that is determined by the context in which it is used. This means that there is always the possibility that we will misunderstand the rule and follow it incorrectly.

Wittgenstein believed that philosophy is not a theoretical discipline that is concerned with discovering the truth about the world. Rather, he saw philosophy as a therapeutic activity that is aimed at helping people overcome their philosophical problems. Wittgenstein believed that these problems are caused by misunderstandings about the nature of language and reality.