The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.
Thomas A. EdisonTo do much clear thinking a person must arrange for regular periods of solitude when they can concentrate and indulge the imagination without distraction.
Thomas A. EdisonTo me, the idea and expectation that the day is slowly and surely coming when we will be able to honestly say we are our brother's keeper and not his oppressor is very beautiful .
Thomas A. Edison