What is a summary for Condorcet's Sketch for a historical picture on the progress of the human mind?

Condorcet's "Sketch for a historical picture on the progress of the human mind" outlines a vision of human progress driven by reason, science, and liberty. He believes that through the spread of education and the pursuit of knowledge, humanity can overcome ignorance, superstition, and social inequalities to eventually achieve a society based on equality and freedom. Condorcet's work emphasizes the power of reason and enlightenment ideals in shaping a better future for mankind.