Steinbeck quote

[Osha Gray Davidson]

I read a wonderful quote by John Steinbeck in someone's paper on corals:
something about "It takes a hungry and libidinous man to observe nature." Is
anyone familiar with this quotation; can you supply a cite?
Thanks,
Osha Gray Davidson
14 S. Governor St.
Iowa City, IA 52240
USA

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Center for International and Comparative Studies, University of Iowa