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Quote by Robert A. Heinlein

Work

Stranger in a Strange Land

Published in 1961, this novel follows the story of Valentine Michael Smith, an Earthman raised on Mars, as he returns to Earth and navigates human society. The book combines elements of science fiction with philosophical and religious ideas, creating a unique and thought-provoking narrative. more

Author

Robert A. Heinlein
Robert A. Heinlein

Robert A. Heinlein was an American science fiction writer, hailed as a master in the field of science fiction. His works have had a profound impact on the development of science fiction literature, with classics such as 'Starship Troopers' and 'The Time Machine'. more

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“In Euclid's Elements we meet the concept which later plays a significant role in the development of science. The concept is called the "division of a line in extreme and mean ratio" (DEMR). ...the concept occurs in two forms. The first is formulated in Proposition 11 of Book II. ...why did Euclid introduce different forms... which we can find in Books II, VI and XIII? ...Only three types of regular polygons can be faces of the Platonic solids: the equilateral triangle... the square... and the regular pentagon. In order to construct the Platonic solids... we must build the two-dimensional faces... It is for this purpose that Euclid introduced the golden ratio... (Proposition II.11)... By using the "golden" isosceles triangle...we can construct the regular pentagon... Then only one step remains to construct the dodecahedron... which for Plato is one of the most important regular polyhedra symbolizing the universal harmony in his cosmology.”

HarmonyPlatoGeometryEuclidGolden RatioPlatonic Solids
Book:"GOLDEN" NON-EUCLIDEAN GEOMETRY, THE: HILBERT'S FOURTH PROBLEM, "GOLDEN" DYNAMICAL SYSTEMS, AND THE FINE-STRUCTURE CONSTANT
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“In fifth–sixth-century Athens, philosophy appears more and more as a systematic whole, its study guided by a canon of authoritative works, including both Aristotle and Plato. The peak of the philosophical curriculum is no longer metaphysics, but theology, i.e.,a philosophical discourse about the divine principles, whose sources lie first and foremost in the revelations of late paganism and then in Plato’s dialogues, allegorically interpreted as conveying his theological doctrine. […] Both the Platonic Theology and the Elements of Theology begin with the One, the First Principle. Departing from Plotinus, who was convinced that the suprasensible causes were but three – the One-Good, Intellect, and Soul – the two Proclean works expound the procession of multiplicity from the One as the derivation of a series of intermediate principles, first between the One and the intelligible being, then between the intelligible being and the divine Intellect (and intellects), and then between the divine Intellect and the divine Soul (and souls). For Proclus, an entire hierarchy of divine principles lies both outside the visible universe and within it, and the human soul, fallen into the world of coming-to-be and passing away, can return to the First Principle only through the “appropriate mediations.” [...] Philosophy, insofar as it celebrates the truly divine principles of the visible cosmos, is prayer.”

PhilosophyPhilosophicalTheologyPlatonismNeo PlatonismProclus
Book:The Cambridge Companion to Arabic Philosophy
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