"We believe in no Magic which transcends the scope and capacity of the human mind, nor in "miracle," whether divine or diabolical, if such imply a transgression of the laws of nature instituted from all eternity. Nevertheless, we accept the saying of the gifted author of Festus, that the human heart has not yet fully uttered itself, and that we have never attained or even understood the extent of its powers."
January 1, 1970
https://en.wikiquote.org/wiki/Isis_Unveiled