I was at the foot of my class.
Never be discouraged, because every wrong turn attempt, when left behind you, is another step forward taking you closer to your goals.
I never pick up an item without thinking of how I might improve it.
Radio is just a fashion contrivance that will soon die out. It is obvious that there never will be invented a proper receiver!
Most of my ideas belonged to other people who never bothered to develop them.
The thing I lose patience with the most is the clock. Its hands move too fast