" Being human means there’s a wall-builder in each of us. Our minds naturally divide the world into me and not-me, us and them. For thousands of years, our sages have taught that we’re all one, yet we still divide wherever we look. "
- Robert J. Waldinger

The quote speaks to a fundamental aspect of human nature: our tendency to create barriers between ourselves and others. This separation manifests as distinguishing between what belongs to us or affects us directly and everything else, often categorized simply as "not-me" or "them." Throughout history, people have naturally formed groups based on similarities like language, culture, or interests, which can lead to a sense of division.

On a deeper level, the quote highlights the ongoing tension between our innate tendency towards separation and the philosophical teachings that advocate for unity. For centuries, wise individuals across different cultures have taught us that we are all part of one interconnected whole. Despite these teachings, human beings continue to erect barriers based on differences in nationality, religion, or social status. This persistent division suggests a complex interplay between our inherent psychological tendencies and the philosophical ideals that challenge them. Understanding this tension is crucial for fostering greater empathy and cooperation among people.

The quote is attributed to Robert J. Waldinger, an American psychiatrist known for his extensive research on human development and well-being. He gained significant attention for leading the Harvard Study of Adult Development, one of the longest-running studies in history focusing on what makes a good life. Through this study, Waldinger has offered valuable insights into relationships, aging, and mental health, contributing significantly to our understanding of human behavior and happiness.