The God whom I adore is not the God of darkness, he has not given me understanding in order to forbid me to use it; to tell me to submit my reason
is to insult the giver of reason.

Jean-Jacques Rousseau (1712-1778) French philosopher and writer

Emile, ch. 4 “The Creed of a Savoyard Priest” (1762) [tr. Foxley (1911)]
    (Source)