What is the central argument of the speaker?

S. Chandrasekhar, through the essay “Patterns of Creativity”, attempts to find an answer to the question ‘Why is there a difference in the patterns of creativity among the practitioners in the arts and the practitioners in the sciences?’. Instead of providing the answer directly, he made an assortment of remarks and extracts which contained it. On one hand, there are poets like Keats and Wordsworth who felt that intervention of science destroys nature while there are poets like Shelly who included science in his poetry. Towards the end, the speaker included an extract from Shelly’s A Defence of Poetry, and further goes on to question why no such defence of science has been written by a scientist.