1 (p. 5): Visibility is an act of consciousness performed by a person who takes the responsibility to define its boundaries.
2 (p. 11): The act of division is the root of all communications, and the division choice determines the whole course of information exchange.
3 (p. 86): Facts are born in an oppositional environment, but their relevance should be placed in a wider context to give them meaning.
4 (p. 106): Recognition is only possible when types of division thinking are in concordance.
5 (p. 336): The rose window is a relevant sign of a new perception in division thinking applied in architecture.
6 (p. 340): The transition from the circular to the linear (around 1200 AD) and back (around 1800) are the most important moments in the (visible) visibility of the European cultural presence.
7 (p. 375): The occurrence of four-fold imagery and symbolism in the period following the Pivotal Point of the European cultural history (1500) is no proof for a growing dominance of the four-fold way of thinking. In fact, the opposite was true: the determination of lower division thinking to find the last examples of tetradic visibility became a pursuit in its own right.
8 (p. 375): The key action in a quadralectic communication can be identified as a process of interconnecting the universe with a degree of relevance for our personal presence.
9 (p. 618): It is good to know, as a psychological acknowledgment, that every communication has its moment of irresponsibility.
10 (p. 779): Every type of division thinking tends to have its own god(s) and beliefs.
11 (p. 781): The essence of any communication is contained in the width of the initial division and its visibility expressed in a shift-number.
12 (p. 944): Most important in life is a relative feeling of the essential. (In Dutch: Waar het om gaat, is niet belangrijk)
13 (p. 948): The only measure in a communication is the degree of understanding between the contributing partners.
14 (p. 953): Beauty is the result of a conscious understanding of a shift in observation point to an environment of higher division thinking.
15 (p. 993): The struggle with symmetry and balance is over, once the conflict is viewed in the light of higher division thinking.
16 (p. 993/994): The act of understanding the phenomena known to the human nature implies the knowledge of the valuation process of an observer.
17 (p. 995): The observer may only find the ‘truth’ in the continuous awareness of changing positions with regards to the observed.
18 (p. 997): The quadralectic way of thinking exceeds the necessity of the figure four to be present in any design. The use of this very characteristic might, in fact, point to the opposite of its intentions.
19 (p. 1004): To make something empirical visible is to reduce its context.
20 (p. 1004): There is no innocent observation anymore. The very moment our consciousness is prepared to draw boundaries, also means a statement in the field of division thinking.