Demócrito

philosopher

Demócrito was an ancient Greek philosopher, best known for his formulation of an atomic theory of the universe. He lived in the 5th century BCE and is often referred to as the 'Laughing Philosopher' due to his belief in the significance of cheerfulness and his exploration of ethics. His ideas laid the groundwork for modern scientific thought, influencing later philosophers and scientists in their understanding of matter and the nature of reality.