Extended quote:
"Architecture and its details are in some way all part of biology. Perhaps they are, for instance, like some big salmon or trout. They are not born fully grown; they are not even born in the sea or water where they normally live. They are born hundreds of miles away from their home grounds, where the rivers narrow to tiny streams. Just as it takes time for a speck of fish spawn to mature into a fully-grown fish, so we need time for everything that develops and crystallizes in our world of ideas."