How did Middle Platonism differ from the earlier Academy’s skeptical period?

The primary difference between Middle Platonism and the earlier Academy’s skeptical period lies in their fundamental approach to philosophical inquiry and the possibility of knowledge.

During the skeptical period, which began with Arcesilaus and the Middle Academy, the school was preoccupied with questioning human claims to knowledge. Influenced by Skepticism, these thinkers denied that certainty was possible on any subject and instead developed a theory of probability to guide practical decision-making, aiming to recover the agnostic attitude of the Socrates found in Plato’s early dialogues.1

In contrast, Middle Platonism marked a return to dogmatic and positive philosophical teaching. Rather than maintaining an agnostic stance, Middle Platonists established a system characterized by:

• Hierarchy of Divine Principles: A focus on the transcendence of a supreme principle, sometimes referred to as "the One."1
• Metaphysical Structure: The placement of Platonic forms within the divine mind.1
• Otherworldly Orientation: A strong emphasis on the "flight from the body" and the ascent of the mind toward the divine and eternal.1
• Theological Concerns: A preoccupation with the problem of evil, often attributed to matter or an evil world soul.1