The value of an idea lies in the using of it.

Every wrong attempt discarded is another step forward

First, study the present construction. Second, ask for all past experiences ...study and read everything you can on the subject.

There's a way to do it better - find it.

I make more mistakes than anyone else I know, and sooner or later, I patent most of them.

The injurious agent in cigarettes comes principally from the burning paper wrapper. The substance thereby formed is called "acrolein." It has a violent action on the nerve centers, producing degeneration of the cells of the brain, which is quite rapid among boys. Unlike most narcotics, this degeneration is permanent and uncontrollable. I employ no person who smokes cigarettes.

I never quit until I get what I want.