Why were the humanists often at odds with the chruch?

Humanists were often at odds with the Church because they emphasized the importance of reason, individualism, and classical learning, which sometimes challenged traditional religious doctrines. They sought to return to original texts and questioned the Church's authority and practices, advocating for a more personal interpretation of faith. Additionally, their focus on human potential and achievements often clashed with the Church's emphasis on divine grace and salvation. This tension contributed to the broader cultural shifts that led to the Reformation and changes in European thought.