As the result of human cognition, knowledge is a concept with great extension. It generally includes four levels or aspects, namely, common sense, experience generalization, scientific knowledge and philosophical knowledge. The so-called common sense mainly includes common knowledge such as sayings and proverbs, which is often not an understanding of the nature and laws of things. Scientific knowledge is a theoretical system, which is logical and systematic.
The argument is supported by the statement that compared with scientific knowledge, there are many aspects of common sense that can't stand scrutiny, that is, it contains many mistakes.