Though "none by searching can find out God, or the Almighty to perfection," yet I am persuaded, that if mankind would dare to exercise their reason as freely on those divine topics as they do in the common concerns of life, they would, in a great measure, rid themselves of their blindness and superstition, gain more exalted ideas of God and their obligations to him and one another, and be proportionally delighted and blessed with the views of his moral government, make better members of society, and acquire, manly powerful incentives to the practice of morality, which is the last and greatest perfection that human nature is capable of.

Chapter I Section I - Of Reforming Mankind from Superstition and Error, and the Good Consequences of it" - Reason: The Only Oracle Of Man (1784)