• Theorists tend to peak at an early age; the creative juices tend to gush very early and start drying up past the age of fifteen-or so it seems. They need to know just enough; when they're young they haven't accumulated the intellectual baggage.

    Leon M. Lederman, Dick Teresi (1993). “The God Particle: If the Universe is the Answer, what is the Question?”, p.16, Houghton Mifflin Harcourt