Things sacred should not only be touched with the hands, but unviolated in thought.
[Lat., Res sacros non modo manibus attingi, sed ne cogitatione quidem violari fas fuit.]
For first of all we must prepare a Natural and Experimental History, sufficient and good; and this is the foundation of all; for we are not to imagine or suppose, but to discover, what nature does or may be made to do.
The world is touched by sacrifice. It does not then discriminate about the merits of a cause. No so God - He is all seeing. He insists on the purity of the cause and on adequate sacrifice thereof.