I can’t explain why, but when I read the Mary Poppins books as a child, the ending of the chapter “High Tide” in Mary Poppins Opens the Door stuck in my mind — so first when I encountered Quadrophenia, then more recently when I emigrated to the UK, Mary’s tart response to Michael, “The sea is at Brighton where it always is!”, helped orient me to one important element of cultural geography.
I was just looking for those words online, and they had not appeared anywhere, so now I have brought that single literary moment to Google’s attention, and the Web will know where to find the sea.