Answer:
He thinks that "It is awfully easy to be hard-boiled about everything in the daytime, but at night it is another thing. "
Step-by-step explanation:
Ernest Hemingway's "The Sun Also Rises" is a novel that revolves around the lives of the American and British expatriate characters as they travel through Europe. This group of disillusioned expatriates includes just one female character, and delves into the theme of masculinity among the male characters, with the victor and victim inconclusive and with different, unpredictable results.
At the end of chapter 4, Jake Barnes was visited by Brett Ashley, the girl "he felt like crying about". It was "half-past four" and she had drunk a bit, arriving at the hotel driven by the Count and infuriating the concierge. She implored Jake to go for breakfast with her and the count, but Jake refused. As they drive away, Jake observed her getting into the limousine, and he "felt like hell again". He decided "It is awfully easy to be hard-boiled about everything in the daytime, but at night it is another thing."