“The 'physical' does not mean any particular kind of reality, but a particular kind of denoting reality, namely a system of concepts in the natural sciences which is necessary for the cognition of reality. 'The physical' should not be interpreted wrongly as an attribute of one part of reality, but not of the other; it is rather a word denoting a kind of conceptual construction, as, e. g., the markers 'geographical' or 'mathematical', which denote not any distinct properties of real things, but always merely a manner of presenting them by means of ideas.”

Ideology and Utopia (1929)
Context: In general there are two distinct and separable meanings of the term "ideology" — the particular and the total.
The particular conception of ideology is implied when the term denotes that we are sceptical of the ideas and representations advanced by our opponent. They are regarded as more or less conscious disguises of the real nature of a situation, the true recognition of which would not be in accord with his interests. These distortions range all the way from conscious lies to half-conscious and unwitting disguises; from calculated attempts to dupe others to self-deception. This conception of ideology, which has only gradually become differentiated from the common-sense notion of the lie is particular in several senses. Its particularity becomes evident when it is contrasted with the more inclusive total conception of ideology. Here we refer to the ideology of an age or of a concrete historico-social group, e. g. of a class, when we are concerned with the characteristics and composition of the total structure of the mind of this epoch or of this group. Although they have something in common, there are also significant differences between them.

Session 92, Page 36
The Early Sessions: Sessions 1-42, 1997, The Early Sessions: Book 3

In an 1987 interview, "Aluminum Cucumbers" http://russiantumble.com/tag/viktortsoi/ (7 November 2012)

The energy, as Seth explains it, can be transformed, but not annihilated.
Source: The Seth Material (1970), p. 200-201

Source: Zen and the Art of Motorcycle Maintenance (1974), Ch. 29

Varela (1975) in: Anne Waldman eds. (1975) The Coevolution quarterly. Nr. 8-12, p. 31

Source: Longing for the Harmonies: Themes and Variations from Modern Physics (1987), Ch.8 The Weak Interaction

From Part 4, section 2: A Theory of Play and Fantasy
Steps to an Ecology of Mind (1972)

Source: Seth, Dreams & Projections of Consciousness, (1986), p. 338 quoting from Session 269