I am currently writing my first scientific paper, but I've never really had any proper training on the specifics of writing one particularly in citing references. The scenario is this: Say I'm reading paper A that wrote about result X which was cited from paper B. I also want to cite result X but I have no access to paper B. Can I just cite result X from paper B even though I haven't read it? I guess one could just say nobody will really know if I read it or not, and probably not care. But is it considered a bad practice to do that? Thanks!