He wants to focus on experiments and research in Douluo, living a peaceful life. It would be even better if he had a few fellow cultivators to exchange ideas with and learn alongside.
Unfortunately, after looking all around Douluo Dalu, Ye Li realizes with disappointment that no one can keep up with him. Not even one person can understand what he says.
So, for his own selfish reasons, Ye Li has no choice but to conquer this world single-handedly and build a new civilization, one capable of keeping pace with his pursuit of truth.