spiration. There were any number of examples of excellent research. Perhaps the greatest contribution of a conference like this is that it stimulates everyone to go back to their labs and try harder to learn more. The hope of such renewal is perhaps the best reason for holding such symposia.
Preparation of these comments was supported in part by grants from the National Institutes of Health (HD-19011), the Spencer Foundation, and the Mellon Foundation. Helpful comments on an earlier draft were provided by Carl Granrud.
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