Psmith was taken aback by Mike's resolve to wake up early for a ride, as he himself didn't share that enthusiasm for early mornings. He expressed his surprise and immediately began offering Mike a range of advice and cautions regarding the practice of rising at dawn. This reflects Psmith's preference for a more leisurely lifestyle and his tendency to approach matters with humor and skepticism.
He referenced a saying by one of the Georges about the importance of sleep, although he couldn't remember the specifics. Psmith humorously noted that a German doctor claimed early rising could lead to insanity. Despite his reservations and lighthearted warnings, he acknowledged Mike's determination, indicating that he was ultimately supportive, albeit perplexed by Mike's intentions.