Through all the years of experimenting and research, I never once made a discovery. I start where the last man left off. All my work was deductive, and the results I achieved were those of invention pure and simple.
The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.
Waste is worse than loss. The time is coming when every person who lays claim to ability will keep the question of waste before him constantly. The scope of thrift is limitless.