Which philosophers influenced Hippolyte Taine’s search for causes in life and history?

Hippolyte Taine’s search for the causal forces of life and history was driven by several key philosophical influences:

• Ideologue Philosophers: In his youth, Taine admired the ideologue philosophers, whose conviction that all knowledge must be based on sense experience, observation, and controlled experiment guided his career and his commitment to positivism.1
• Hegel and Spinoza: Taine was attracted to the metaphysical ideas of Hegel and Spinoza, which inspired his desire to discover a total explanation for the causal forces of the universe and life itself.1
• Auguste Comte: As a leading exponent of 19th-century positivism, Taine was influenced by the scientific spirit championed by Auguste Comte, whose work established a framework for studying social and intellectual life through observed facts.12

Taine later sought to fuse these influences—specifically positivism and Hegelian idealism—to develop a scientific methodology for understanding human personality and history, famously emphasizing the conditioning factors of race, milieu, and moment.13