• 分散的知识，没有被记录下来，只存在于个人之中，比如，某一个地方的环境、道路信息。
• 定量的信息，我们通常知道一些关于某事物的部分信息，诸如它们的构成等等，但是我们不知道其相互的比例。
• 实践的信息，知道某一件事和能够做某一件事，有着天壤之别。

What is hidden knowlege:

• Scattered knowledge exists only within individuals and is not recorded, such as information about the environment and roads in a specific place.
• Quantitative information refers to the partial information we usually know about something, such as its composition, but we do not know the proportions of their interrelations.
• Practical information is vastly different from merely knowing about something and being able to do something.