The average person puts only 25% of his energy and ability into his work. The world takes off its hat to those who put in more than 50% of their capacity, and stands on its head for those few and far between souls who devote 100%.

Andrew Carnegie

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You cannot push anyone up the ladder unless he is willing to climb. 

Andrew Carnegie

Do your duty and a little more and the future will take care of itself.

Andrew Carnegie

No man can become rich without himself enriching other

Andrew Carnegie

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