" The advantage of knowing where insights come from is that it can make it easier to generate insights in the first place. When we’re struggling with seemingly impossible problems, it’s important to find time to unwind, to eavesdrop on all those remote associations coming from the right hemisphere. Instead of drinking another cup of coffee, indulge in a little daydreaming. Rather than relentlessly focusing, take a warm shower, or play some Ping-Pong, or walk on the beach. "

― Jonah Lehrer , Imagine: How Creativity Works