Writing in the garden...

I am writing in the garden. To write as one should of a garden one must write not outside it or merely somewhere near it, but in the garden.
Frances Hodgson Burnett
(1849-1924)

as cited by : http://www.thefreedictionary.com/lookup.htm, accessed January 21, 2009.

Compare this quote to the idea of studying science only in books versus in the laboratory and in the field. You can use a Venn diagram a chart or an essay.