When active force passes through any kind of matter it is called Carbon. When passive force passes through it, it is called Oxygen. When neutralizing force works through it, it is called Nitrogen. And when matter is taken without relation to the force that works through it, it is called Hydrogen. At first these names should be taken simply as labels. Thus the Law of Three brings relativity into our definition of matter, for instead of one iron we have four irons, instead of one copper four coppers, and so on. Father, mother, son; carbon, oxygen, nitrogen. The family is hydrogen. The beginning of a new family is the son.

• force
• family
• law
• labels
• definition
• relativity
• law of three
• matter