What is the author's tone in Biographia Literaria, or, Biographical Sketches of My Literary Life and Opinions by Samuel Taylor Coleridge?

The tone of the book is subjective, which is appropriate for a book of this nature. Coleridge is analyzing the relationship between poetry and philosophy. He is presenting his own views and theories as to where the poetic brilliance arises from and what constitutes good poetry. Although he draws on many sources in philosophy and literature, the theories he presents are the results of his own views and opinions. The analysis he conducts are based on his own views and opinions. The criticisms he makes against other poets are based on his own opinions, but they are not randomly made. He develops his theories based on his examination of philosophy on how the mind works.