The third talk of the day was delivered by Marco Antonio Lavariega, who offered a fascinating perspective on "The Timeless Wisdom of Nezahualcoyotl." Lavariega began his presentation by contextualizing Nezahualcoyotl's era, skillfully comparing it to the European Renaissance and drawing parallels with figures like Leonardo da Vinci. This comparison served to highlight Nezahualcoyotl's visionary and multidisciplinary character, presenting him as a true "Renaissance man" within the context of ancient Mexico. The speaker emphasized the scientific and mathematical advancements of ancient civilizations, placing particular emphasis on the invention and use of zero. He explained how this advanced mathematical knowledge was crucial for Nezahualcoyotl's architectural and engineering innovations, including the construction of monuments and complex hydraulic systems. Lavariega also discussed the richness of Mesoamerican gastronomic heritage, mentioning foods such as tomato, maize, avocado, and chocolate. He explained how these foods, inherited from earlier cultures and refined during Nezahualcoyotl's time, represent not only culinary richness but also an example of sustainable management of food resources. A particularly interesting aspect of the presentation was the discussion on how banquets and celebrations during Nezahualcoyotl's time reflected a profound understanding of natural cycles and local biodiversity. Lavariega argued that this intimate connection with the natural environment is a fundamental principle that could inform our current sustainability practices. The talk concluded with a reflection on how the knowledge and practices from Nezahualcoyotl's era can inform solutions to contemporary challenges. Lavariega argued that respect for ecosystems and a deep understanding of natural cycles, characteristics of these ancient civilizations, are crucial for addressing current issues such as food security and climate change. This presentation effectively bridged the gap between the past and present, demonstrating how Nezahualcoyotl's wisdom and Mesoamerican worldview can offer valuable lessons for pursuing sustainability in the modern world. Lavariega's talk reinforced the central theme of the webinar: that solutions to our current challenges can be found in a harmonious combination of ancestral knowledge and modern scientific advancements.