bet365 best casino games ignorance is the lack of knowledge。However, except for passive ignorance，And active ignorance。In active ignorance，The cognitors weigh different values ​​and goals，Actively shape or maintain ignorance through action。Show energy through the cognitive subject，Active ignorance has obtained standardized attributes。Ignorance has made a systematic research on active ignorance，and identify the three typical typical active ignorance: the active construction ignorance、Passive ignorance and good ignorance。intentional ignorance is negative ignorance。The obligation and ability of the cognitive subject has the obligation and ability，But I have a strong willingness to avoid gaining knowledge。Unexpected ignorance often shows the evil habit of cognitive subject in moral or cognitive，Therefore, it will cause blame and criticism。

　　Keywords:Active ignorance, rationality, habits, ignorance, intentional ignorance

　　AuthorWang Ju，Associate Professor of the School of Philosophy of Fudan University (Shanghai 200234)。