"When you talk about beauty in the context of the garden are you talking about a series of beautiful scenes that stay in the mind, or are you talking about some sort of all-pervading sense of beauty which you can take away with you? What are the modes of beauty which you think a garden can offer which may be of value? ... I mean, talking about the Italian tradition, so many of those gardens are about the invisible qualities of the garden rather than the visible ones."

- Tim Richardson, talking with Penelope Hobhouse at the April 2009 Vista Lecture in London