"A little reflection will show that humbug is an astonishingly wide-spread phenomenon — in fact almost universal."

"Politeness and good humor are as much in demand as good merchandise."

"Unless a man enters upon the vocation intended for him by nature, and best suited to his peculiar genius, he cannot succeed."

"The great art of money making consists in putting money at the service of the public."

"The greatest enemy of progress is 'good enough.'"