All human beings go through a process of maturity, as time passes and the years become heavy, each person's experiences shape his wisdom. Shakespeare is no stranger to this process. From sonnet 18 to sonnet 116, both on his authority, there is a visible evolution in both his writing and his attitude. Both sonnets deal with the idea of ​​eternal love, but it is the topic that changes in each sonnet. In “sonnet 18” the beloved is the center of the discussion. In this sonnet the speaker talks about the perfection of his loved one and how his beauty will be eternal through his verses. Here Shakespeare indicates that the love between two people can change, an example is the line "too hot shines the eye of heaven", as here he is implying that sometimes extreme passion can interrupt a purer love. In contrast, the subject of sonnet 16 is love in general, and this love "is an ever fixed sign," meaning it cannot be changed or altered. In this sonnet it is clear how Shakespeare came to understand that even hard people change as long as they love, love in general will never be the same. In contrast to sonnet 18, which suggests that the poet has the power to make love immortal, sonnet 16 asserts that love is not subject to the words of mortals; it is eternal in itself. Even though both poems have the same author, there is a clear transition between Shakespeare's writing in “sonnet 18” and that in “sonnet 116”. In "sonnet 18" the speaker acts more like a master of love, he has the power to make things eternal through his verses, and his love for his beloved will live forever because his poetry will keep him alive . This shows a younger love, who feels in control of the world and feels confident in his views. While in “sonnet 11… middle of the paper… much more self-centered, he idealizes the way his loved one appears to him and he also idealizes the extent of his power as a writer. While in sonnet 116 he idealizes more of the idea of ​​love itself and the value it has in every life, this is a clear progression from a self-centered point of view to a more altruistic one, showing how his wisdom and maturity have evolved. Poetry is about who we are; it is one of the most sublime ways of expression. Through verse and verse poets can convey whatever they want, from a feeling to an idea, always leaving a piece of themselves in the process. In Shakespeare's case, he has a large amount of sonnets and by following the progression of those sonnets you can also see how he changed as both a person and a writer. Poetry is the window into a person's soul, no historical research could speak more about Shakespeare than his poetry.