41. But, coming to the next point, we are not to reckon among human institutions those things which men have handed down to us, not as arrangements of their own, but as the resell of investigation into the occurrences of the past, and into the arrangements of God's providence. And of these, some pertain to the bodily senses, some to the intellect. Those which are reached by the bodily senses we either believe on testimony, or perceive when they are pointed out to us, or infer from experience.