“Exercise your mind and practice levity; such mental calisthenics help you avoid standing at the doorsteps of atrophy, and perhaps, lunacy.” — Geoff O. Gumban Copy Share Image
Worry is evidence of an ill-controlled brain; it is merely a stupid waste of time in unpleasantness. If men and women practiced mental calisthenics as they do physical calisthenics, they would purge their brains of this foolishness. — Arnold Bennett Copy Share Image
