I have had a long, long life full of troubles, but there is one curious fact about them-nine-tenths of them never happened.
Andrew CarnegieThe 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 CarnegieHe that cannot reason is a fool. He that will not is a bigot. He that dare not is a slave.
Andrew Carnegie