Throughout his work, Walter Benjamin was concerned with understanding the proper form of philosophical thought and its expression. Thus, he attributed extreme importance to the exercise of this form in the language of philosophy, more specifically in its writing. Thought, according to Benjamin, returns to the beginning and, thus comes back with minutiae to the thing itself. The motivation of philosophical language starts from the constant return to micrologic. This language can find access to truth by renouncing its intention and being willing to detour. This dissertation studies part of the unfolding of this problem in Benjamin: what is the form of expression proper to philosophy, or what is the relationship between form and content in philosophical language. With this purpose, we try to expose the foundations of Benjamin's conception of language; his emphasis on the comprehension of form in the first romantics from the perspective of his study on their concept of criticism; finally, we arrive at the question of the relationship between truth and history based on the concepts of monad and origin.