². The three definitions shall be partitioned strictly as they have completely different attribute. One computer program written on paper is broken symmetry of symbol, but compute doesn't know this program. Sequence of electric signal generated by knock on keyboard is broken symmetry of matter, which is such information as able to be recognized by computer. The word “Fish” has different attribute from actual fish. Fish can be eaten but the word is unable to be eaten.

If one person has two names, it is no matter. For example, Mao Zedong is also called Mao Runzhi, either one can be said without misunderstanding present. However, it would be trouble and liable to causing misunderstanding if two people has a same name. Thus, name of people is always not scientific language. Administration gives every people an ID number which is exclusive and would not cause any misunderstanding. Therefore, ID number is scientific language.

Now, the noun of information used by people is not scientific as it contains three meanings which are liable to causing misunderstanding, and can bring scientific research a lot of troubles and mistakes. Eating wrong matter is not big trouble, but it would be great trouble if information is used to explain essence of life, universal evolution or other theory. Jianhui Li considers that essence of life is to transfer information during growth and reproduction³. Information in his mind means broken symmetry for matter other than signal and symbol. However, other people may understand information as broken symmetry for signal and symbol or broken symmetry for consciousness.

How to solve this problem? Different nouns shall be used to respectively express three broken symmetries. I claim not to use again the information to express broken symmetry of consciousness and signal and symbol but only use the information to express broken symmetry of matter other than signal and symbol. Herein, matter mentioned means that opposite to consciousness. Broken symmetry for signal and symbol is called signal and symbol; it may be said that signal and symbol is carrier of information but signal and symbol themselves are not information. Broken symmetry for consciousness is called cognition to information, cognition and other consciousness are not information.