Which political theorist emphasized the importance of individuality in expressing opinions?

John Stuart Mill is recognized for his strong advocacy for individuality and the expression of personal opinions within a democratic society. In his seminal work "On Liberty," Mill argues that individuality is essential for personal development and societal progress. He emphasizes that allowing diverse opinions to flourish leads to a marketplace of ideas where truth can emerge. Mill posits that even unpopular or unconventional views should be expressed freely, as this diversity fosters intellectual growth and prevents societal stagnation.

This focus on individuality is crucial in a democracy, as it champions the idea that citizens should have the freedom to express their thoughts without fear of repression. By doing so, Mill not only defends the concept of freedom of speech but also highlights its role in personal and societal evolution, illustrating that the clash of ideas enhances critical thinking and enriches the human experience.