A sunny disposition is worth more than [a monetary] fortune. Young people should know that it can be cultivated; that the mind like the body can be moved from the shade into sunshine.
Andrew CarnegieAnd while the law of competition may be sometimes hard for the individual, it is best for the race, because it ensures the survival of the fittest in every department.
Andrew CarnegieI believe the true road to preeminent success in any line is to make yourself master in that line. I have no faith in the policy of scattering one's resources, and in my experience I have rarely if ever met a man who achieved preeminence in money making.. certainly never one in manufacturing.. who was interested in many concerns.
Andrew Carnegie