"People who are unable to motivate themselves must be content with mediocrity, no matter how impressive their other talents"

In this quote, Andrew Carnegie is emphasizing the importance of self-motivation. He thinks that those who are not able to encourage themselves will never ever reach their complete potential and will instead choose mediocrity. No matter how talented or experienced a person may remain in other areas, without the drive and decision to press themselves, they will never attain greatness. Carnegie is suggesting that true success and quality can just be accomplished through self-motivation and the continuous pursuit of improvement. This quote serves as a pointer to constantly strive for self-motivation and to never go for anything less than our best.