Architecture Puzzler #278

"Always design a thing by considering it in its next larger context — a chair in a room, a room in a house, a house in an environment, and environment in a city plan."

Quote by Eliel Saarinen or Louis Kahn?

Which is the best temperature for concrete to cure at — 90, 73, or 55 degrees Fahrenheit? (32, 23, or 13 degrees Centigrade?)