The nature of numbers, therefore, if we regard the units, abideth in the ten; but if we regard its power, in the four.
Therefore the Pythagoreans say that their most sacred oath is by that god who delivered to them the quaternary.
By th' founder of the sacred number four, Eternal Nature's font and source, they swore.
Of this number the soul of man is composed; for mind, knowledge, opinion, and sense are the four that complete the soul, from which all sciences, all arts, all rational faculties derive themselves.

For what our mind perceives, it perceives after the manner of a thing that is one, the soul itself being a unity; as for instance, a multitude of persons are not the object of our sense nor are comprehended by us, for they are infinite; our understanding gives the general concept of A MAN, in which all individuals agree.

The number of individuals is infinite; the generic or specific nature of all being is a unit, or to be apprehended as one only thing; from this one conception we give the genuine measures of all existence, and therefore we affirm that a certain class of beings are rational and discoursive.

But when we come to give the nature of a horse, it is that animal which neighs; and this being common to all horses, it is manifest that the understanding, which hath such like conceptions, is in its nature unity.

It follows that the number called the infinite binary must be science; in every demonstration or belief belonging to science, and in every syllogism, we draw that conclusion which is in dispute from those propositions which are by all granted, by which means another proposition is obtained from the premises.