“The secret to humor is surprise.”

“Humor is the only test of gravity, and gravity of humor; for a subject which will not bear raillery is suspicious, and a jest which will not bear serious examination is false wit.”

“The secret of success is to know something nobody else knows.”

“There was never a genius without a tincture of madness…”

“The cultivation of the intellect is man's highest good and purest happiness”

“Where your talents and the needs of the world cross, there lies your vocation.”

“To lead an orchestra, you must turn your back on the crowd”