"It goes without saying" is a common phrase used to indicate that something is so obvious or well-known that it need not be mentioned explicitly. However, there are a variety of other phrases and expressions that can convey a similar meaning. For example, one might say "it's common knowledge" or "this is a given." Other options include "it's a no-brainer," "needless to say," or "without a doubt." More formal alternatives might include "it is self-evident" or "it is axiomatic." Ultimately, the best choice for expressing the idea that something is so evident as to be beyond stating will depend on the context and tone of the conversation or writing.