Christopher Alexander is one of the few truly original thinkers in architecture and planning. His vision, as expressed in The Pattern Language, starts at the regional level and ends up including individual rooms and architectural details. Of all his maixms, I like "buildings over 4 stories make people crazy" best, but you can disagree with many of his individual conclusions, while respecting the breadth of his vision, which definitely includes a particular view of how society should work that some may disagree with. Whether you disagree or not, you won't find many other thinkers of such scope.