Only uses one variable to demonstrate Schrodinger's equation (momentum, potential AND operators). And does not make any mistake.

Can calculate the restaurant tab in under .03 seconds.

P.Sacramento: "So we´ll just start from the notion that every fermion has a half-integer spin and every boson has a integer spin."

Student: "But why´s that?"

P.Sacramento:"There is a demonstration to this. But I won´t do it here."

Student:"Why not?"

P.Sacramento:"Somethings are just not meant to do in public."