I guess I spend my free time going back to basic thermodynamics and differential geometry concepts and being eternally confused.

But my favorite dream is of going to the opera (I am Hafnium), sharing a box at the Met with the other heavy transition metals—my old and valued friends—Tantalum, Rhenium, Osmium, Iridium, Platinum, Gold, and Tungsten.

-Oliver Sacks, Uncle Tungsten