We should strive to safeguard public morals and improve social climate.

我们应该努力维护公共道德，改进社会风气。

youdao

But while free speech might be the starting point, the ECHR does allow for the restriction of those freedoms to safeguard "public safety, for the prevention of disorder or crime, for the protection of health or morals, protection of the reputation or rights of others".

BBC: Obscene stories or free speech?