Meaning: This quote by Lawrence Lessig, an American academic, and political activist, encapsulates the essence of societal change and the evolution of ideas within a given time period. It suggests that the defining characteristics of an era are not necessarily defined by the ideas that are actively debated and contested but rather by the ideas that have become ingrained and accepted as the norm. In other words, the prevailing attitudes and beliefs that require no justification or defense shape the fabric of a particular era.

Throughout history, numerous examples can be found to support this notion. For instance, during the Renaissance, the acceptance and promotion of humanism, the rediscovery of classical texts, and the emphasis on individualism and human potential were fundamental ideas that came to define the era. These concepts were not necessarily the subject of constant debate; rather, they became the underlying principles that permeated through various aspects of society, including art, literature, and governance.

Similarly, in more recent times, the idea of democracy and the principles of equality and justice have become deeply entrenched in many societies. While these ideas were once revolutionary and vigorously debated, they have now become the bedrock of modern governance and are taken for granted in many parts of the world.

Lessig's quote also sheds light on the power of implicit assumptions and the influence of unchallenged ideas on shaping the course of history. It implies that the unspoken, underlying beliefs and values of a society often have a more profound impact on its direction than the explicit and debated ideologies. The unchallenged ideas can either be progressive and transformative or regressive and constraining, depending on their nature and implications.

Furthermore, the quote invites reflection on the role of individuals and institutions in challenging the status quo and ushering in new ideas that eventually become taken for granted. It highlights the importance of intellectual and social movements that aim to shift the collective mindset and redefine the accepted norms. These movements often face resistance and require sustained effort to challenge the prevailing ideas and carve out space for alternative perspectives.

In the context of contemporary society, the quote prompts consideration of the current ideas that are taken for granted and their implications for the character of the era. It invites an examination of the implicit assumptions and norms that underpin social, political, and economic structures. By critically evaluating these ingrained ideas, individuals and communities can work towards fostering positive change and progress.

In conclusion, Lawrence Lessig's quote encapsulates the idea that the defining characteristics of an era are shaped not only by the ideas that are actively debated but also by the ideas that have become ingrained and accepted as the norm. It emphasizes the power of unchallenged assumptions and the influence of implicit beliefs on the course of history. By critically examining the ideas that are taken for granted, individuals and societies can actively contribute to shaping the character of their era and fostering positive change.