"Whenever I
am angry or depressed, I pull down the collected papers from the
shelf and take a quiet stroll in Ramanujan's garden. I recommend
this therapy to all of you who suffer from headaches or jangled
nerves. And Ramanujan's papers are not only a good therapy for
headaches, they also are full of beautiful ideas which may help
you to do more interesting mathematics" --Freeman J. Dyson, "A Walk Through Ramanujan's Garden"
