It is to be noted that his own letters contain, both at this time and later on, express disproof of that miraculous gift of tongues with which he was credited even in his lifetime, and which is attributed to him in the Breviary office for his festival.
On the other hand, if 1 were disproved, 4 would immediately fall through, and the strength of 5 would be weakened (as it would also by the disproof of 2), because the argument for the date of many Psalms is derived from religious ideas and the significance of these varies greatly according as the Priestly Code is held to be early or late.
Moreover his theory of the cold earth at rest and the hot sun in motion was doomed to disproof at the hands of Copernicus.
Aristotelians, the dialectical induction of the Topics, content with imperfect enumeration and with showing the burden of disproof upon the critic, is puerile, and at the mercy of a single instance to the contrary.
The Jesuits themselves deny the existence of any such body, and are able to adduce the negative disproof that no provision for it is to be found in their constitutions.
It must be noted, however, that this disproof relates only to known existing organisms. All these are composed of a definite substance, known as protoplasm, and the modern refutation of abiogenesis applies only to the organic forms in which protoplasm now exists.