False friendship, like the ivy, decays and ruins the walls it embraces; but true friendship gives new life and animation to the object it supports.
I came to graduate school at Harvard University in 1954. My thesis supervisor, Julian Schwinger, had about a dozen doctoral students at a time. Getting his ear was as difficult as it was rewarding. I called my thesis 'The Vector Meson in Elementary Particle Decays', and it showed an early commitment to an electroweak synthesis. Sheldon Lee Glashow