ecsmith811 writes "It seems the infamous "they" that people always refer to have come up with some new disclaimers.
If you know who Pauli or Fermi is you'll definitely enjoy this. " Yeah, it's a Monday morning. My frazzled neuralnet finds this quite funny.
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"