The human mind perceives no external body as actually existing save through ideas of modifications of its own body . In so far as the human mind imagines an external body, thus far it has no adequate knowledge of it. And therefore, in so far as the mind imagines external bodies, it has no adequate knowledge of them, and in truth does not exist except in a condition of its own inadequate nonexistent bodiness. All ideas, in so far as they have reference to God, are true. Now all ideas which are in God must entirely agree with their ideals, and therefore they are true.
Truth is true and nothing else is true.
Every idea in us which is absolute, or adequate and perfect, is true. When we say that an adequate and perfect idea is granted in us, we say nothing else but that there is granted in God an adequate and perfect idea in so far as he constitutes the essence of our mind, and consequently we say nothing else than that such an idea is true. If men were born free they would form no conception of good and evil as long as they were free. I said that he was free who is led by reason alone. The infinite mind of God is the reason of his freedom.