In George Bernard Shaw's work "Back to Methuselah," the quote highlights two contrasting perspectives on life and creativity. The speaker contrasts the mindset of questioning the status quo with a more imaginative approach that seeks possibilities beyond the current reality. This reflects a fundamental difference between those who observe and critique and those who envision new horizons.

Shaw's words inspire readers to adopt a more optimistic view, encouraging them to dream boldly and consider the potential for change and innovation. Rather than merely accepting things as they are, the call to action is to embrace a mindset where one explores 'why not' and pushes boundaries to imagine a better future. Such a perspective is vital for progress and creativity.