Is the public lecture at Peking University legal?

The open class of Peking University is legal. According to the relevant information, Peking University's public lecture is a purely public quality of life and education exploration course. It was founded by Peking University Institute of Industry and Culture in February, 2012007, and jointly organized by Peking University Institute of Historical and Cultural Resources in June, 2012007. This is a public lecture on law.