Knowledge is ,no doubt,an important wealth to the mankind but there has not a knowledge theory existed yet till the present time.An attempt was made in[1]to establish a foundation of knowledge theory that includes a series of basic issues such as the related concepts and definitions,the methods of representation,the measurements,the reasoning and decision rules.Here in the paper the nucleus of knowledge theory,the mechanism of knowledge creation and that of intelligence production,will be presented.It is believed that the establishment of the knowledge theory will lay a solid foundation to the...