Some cause happiness wherever they go; others, whenever they go. (Oscar Wilde)

An inconvenience is only an adventure wrongly considered; an adventure is an inconvenience rightly considered. (Gilbert Keith Chesterton)

Against stupidity, the gods themselves contend in vain. (Friedrich von Schiller)

Problems worthy of attack prove their worth by fighting back. (Paul Erdos)

Human history becomes more and more a race between education and catastrophe. (H. G. Wells)