Architecture Puzzler #245

Three great architects, Louis Kahn, LeCorbusier, and Arthur C. Erickson, eloquently expressed their thoughts about architecture and those things that inspired them. Which of the following quotes is by which of the above three architects:

A. "I would wish that architects themselves, not only architectural students, sometimes took up their pencils to draw a plant or a leaf — or to express the significance of a tree, the essential harmony of a shell, the stratification of the clouds, the ever-changing ebb and flow of waves at play on the sand — and discover the successive phases of expression of the inner force informing all these things."

B. "I am not involved in the aesthetics of architecture or interested in design as such. I'm interested in what buildings can do beyond what they look like, and how they can affect whole areas and people's lives. I have never done a building where I didn't at least attempt to see it in a new philosophical or social way. I could have asked questions in any field, but I am doing it through my buildings."

C. "All material in nature, the mountains and the streams and the air and we, are made of Light which has been spent, and this crumpled mass called material casts a shadow, and the shadow belongs to Light."

Which was built first — Hagia Sophia (Istanbul) or Chartres Cathedral (France)?