This quote is a metaphor that speaks to the idea of substance over style. It suggests that it would be unfortunate if the exterior (the bag) was of higher quality or value than the content it holds (the meat). In essence, Einstein is emphasizing the importance of inner worth or quality over mere appearances or superficial attributes.

In a broader context, the quote is a critique of societies that value surface-level attributes—like wealth, beauty, or status—more than deeper, intrinsic qualities like character, intelligence, or kindness. It’s a reminder not to get caught up in the dazzle of the packaging but to look at what’s inside.

Applied to today’s world, it could refer to various scenarios. For instance, in the realm of social media, where people often present highly curated, idealized versions of their lives, the ‘bag’ (the glamorous online persona) might be far more impressive than the ‘meat’ (the reality of that person’s life).

In terms of personal development, it underscores the importance of cultivating inner qualities and skills rather than focusing solely on external appearances or validation. For example, instead of investing all your energy into looking successful, it’s more fulfilling and sustainable to work on actually being successful through continuous learning, skill development, and character building. The ‘meat’ in this case is your real value, knowledge, and character, while the ‘bag’ represents the superficial indicators of success like wealth, status, or physical appearance.

In summary, Einstein’s quote is a timeless reminder to focus on what truly matters—our inner worth—and not to be deceived by the shiny but often deceptive exterior.