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 CarnegieThe price which society pays for the law of competition, like the price it pays for cheap comforts and luxuries, is great; but the advantages of this law are also greater still than its cost- for it is to this law that we owe our wonderful material development, which brings improved conditions in its train.
Andrew Carnegie