First of all, freedom of speech should not

be limited. In the spirit of freedom of speech, if majority,through a democratic process, agree to not say this nor that because of indencency or other moral reason, it can be established through law

But without freedom of speech. you would not get where you can hear dessent voices so as to know what's good and what's bad. The spirit of freedom of speech is unlimited. People use it to improve their lives and society though amending their rules

Chinese Communist Party always use ill-argment to dispute the freedom of speech.