Philo of Alexandria is widely regarded for his attempt to harmonize Jewish theology with Greek philosophy, making him a pivotal figure in the development of religious thought, particularly within Judaism and, subsequently, early Christianity.

Isaac Israeli ben Solomon (832 CE to 932 CE), often referred to as Isaac Israeli or simply Isaac the Jew, was a prominent Jewish philosopher, scientist, and physician of the 9th and 10th centuries.

Living during a formative period for Jewish intellectual life, Saadia pioneered efforts to synthesize Jewish theology with philosophical reasoning, creating a foundation for rationalist approaches within Judaism.

His life spanned turbulent times, including the political and religious upheavals of the medieval Jewish diaspora, and his work continues to have a profound influence on Jewish thought, philosophy, and even the development of Western philosophy.

Joseph Albo (c. 1380–1444) is one of the most important Jewish philosophers and theologians of the medieval period. His work bridged the gap between earlier Jewish thinkers like Maimonides and later intellectual developments in Jewish philosophy.