Humanism was the essence of the Renaissance, involving a revival of Latin and Greek texts. It became a popular ideology that asserted human dignity and values. It expressed confidence in humanity’s predominance and shaping society and nature to their desire. As the Greek philosopher, Protagoras stated: “Man is the measure of all things”. Humanism derives from the Latin word humanitas, which meant humanity or cultivation of the mind. Renaissance-era people wanted education and knowledge to develop society. It meant exploration and innovation for Renaissance Humanists, and to understand the natural world and the universe behind it. Florence, Venice, Pisa, Milan, and Rome adopted humanism and removed religion as a dominating force that spawned the Renaissance era. Humanists wanted unity of truth and wanted secularism.