I find that the harder I work, the more luck I seem to have. (Thomas Jefferson)

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)

The fundamental cause of trouble in the world is that the stupid are cocksure while the intelligent are full of doubt. (Bertrand Russell)