In the late 18th century, who stressed the importance of an educated citizenry to monitor the frailties of political leaders and protect the foundations of democratic life?

It came from the Notes on the State of Virginia last 1784 from Thomas Jefferson. He explained that corruption is a human weakness. The government becomes less of itself when left alone on its decision without the people's participation. Thus, it means that the people should learn more of their political rights as citizens to participate in government political decisions.