Transition to Chaos in Classical and Quantum Mechanics: Lectures given at the 3rd Session of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Montecatini Terme, Italy, July 6–13, 1991
“ Ego says, "Once everything falls into place, I'll feel peace." Spirit says "Find your peace, and then everything will fall into place." ” ― Marianne Williamson