Galton was raised in a devout Quaker family. The Quaker values of simplicity, honesty, and social justice likely influenced his early moral development and his commitment to social reform.

As Galton pursued his scientific research, he gradually drifted away from traditional religious beliefs. He embraced a more secular and scientific worldview, emphasizing empirical evidence and rational inquiry over faith and dogma. His studies on heredity and evolution likely contributed to this shift.

Galton conducted a statistical study on the efficacy of prayer, examining whether members of the royal family (who were often prayed for) lived longer than other members of the upper class. He found no evidence to support the claim that prayer had any measurable effect, further reinforcing his skepticism towards religious beliefs and practices.