This Starting-point of Thought and Action has reference to the Ideas of _Oneness_ (Primitive Unity) and _Twoness_ (Plurality). These conceptions give rise to _two_ Primordial Principles, which form the basis of the development of UNIVERSOLOGY, and which are fundamental in every Department of the Universe and in the Universe as a whole, namely: _The Principle of Unism_ (from the Latin _unus_, _one_), the _Spirit_ of the Number _One_, the Principle of _Undifferentiated_, _Unanalyzed_, _Agglomerative_ Unity; and _The Principle of_ DUISM (from the Latin _duo_, _two_), the _Spirit_ of the Number _Two_, the Principle of _Differentiation_, _Analysis_, _Separation_, _Apartness_, or _Plurality_, typically embodied in _Two_, the first division of the Primitive Unity, and especially representative of the Principle of Disunity, the essence of all division or plurality. _One_, in the Domain of _Number_, and UNISM, in the Department of Primordial Principles, correspond, it must be added, with _The Absolute_ (the Undifferentiated and Unconditioned), as one of the Aspects of Being; while _Two_, in the Domain of _Number_, and _Duism_, among Primordial Principles, are allied with _The Relative_ (the Differentiated and Conditioned), of which latter Domain _Something_ and _Nothing_ are the two Prime Factors. The distinction between _One_ and _Two_, or their analogous Aspects of Being, _Absolute_ and _Relative_, is, therefore, prior to that between _Something_ and _Nothing_, because _Something_ and _Nothing_ are two terms of _The Relative_ (_Two_), which has first to be itself discriminated from _The Absolute_ (_One_) before it can be sub-divided into these two factors. While the nature of this discrimination into _Something_ and _Nothing_ may be sufficiently intelligible to the student of Metaphysics, it may not be so to the Reader unaccustomed to Philosophical Speculation. For the purpose, therefore, of rendering it somewhat clearer, I will point out the manner in which it exhibits itself in respect to the Constitution of the External World and elsewise. The Totality of all material objects and substances is the _Positive_ Material Universe. This is contained in _Space_, which is the _Negative_ Material Universe. Compoundly the two, _Matter_ and _Space_, are the whole Material Universe, as to the Parts or Constituent Factors of which it consists.