My dad wanted me to play when I was a kid, so I learned to play the guitar. I pursued a career in music because I love it so much and I enjoy what it does to those who hear it. ↗
A scientist is in a sense a learned small boy. There is something of the scientist in every small boy. Others must outgrow it. Scientists can stay that way all their lives. ↗
But the beauty of Einstein's equations, for example, is just as real to anyone who's experienced it as the beauty of music. We've learned in the 20th century that the equations that work have inner harmony. ↗