Courtesy of Neurosciences Institute
Science is imagination in the service of the verifiable truth. Its satisfactions come from the realization of imagination in well-designed experiments. That realization is like the satisfactory scratching of a mental itch. If you lose the itch or you feel that the mere working out of details will not scratch the itch you have, it is time to consider changing fields.
- Gerald Edelman, 1972 Nobelist and director of the Neurosciences Institute in San Diego