It is not the rich man's son that the young struggler for advancement has to fear in the race for life, nor his nephew, nor his cousin. Let him look out for the dark horse in the boy who begins by sweeping out the office.
Andrew CarnegieThe public only knows one side of [Mark Mark Twain] - the amusing part. Little does it suspect that he was a man of strong convictions upon political and social questions and a moralist of no mean order.
Andrew CarnegieIn [my] life ... I did not understand steam machinery, but I tried to understand that much more complicated piece of mechanism - man.
Andrew Carnegie