Page:Ante-Nicene Christian Library Vol 6.djvu/31



HE following are the contents of the first book of The Refutation of all Heresies.

We propose to furnish an account of the tenets of natural philosophers, and who these are, as well as the tenets of moral philosophers, and who these are; and thirdly, the tenets of logicians, and who these logicians are.

Among natural philosophers may be enumerated Thales, Pythagoras, Empedocles, Heraclitus, Anaximander, Anaxi-