Lines 24 through 38 provide details about Leonardo da Vinci's curiosity, creativity, and passion for learning. This helps to develop the central idea that Leonardo was a genius and an embodiment of the curiosity and creativity of the Renaissance period. The article describes how Leonardo was not content with mastering one skill but instead explored various fields, including art, science, engineering, and music, to satisfy his thirst for knowledge. The lines mention how he was always seeking new challenges to better himself and how he became an expert in so many areas that he was regarded as a true Renaissance man. The author also mentions how Leonardo used his imagination and creativity to draw and invent new machines, such as the flying machine, which exemplifies his talents beyond just painting. Overall, lines 24 through 38 show how Leonardo's genius was a result of his insatiable curiosity, passion for learning, and creativity, which were essential traits of Renaissance humanism.