Is the Constitution really useful?

I believe that the Constitution is as useful as people make it seem. Most of the things written in the constitution are still in affect today. Things such as freedom of speech, religion, the right to bear arms, press, petitioning, all these things are still applied in today's society. Most people take advantage of these things everyday and never stop to think that all these things they do everyday applies to the constitution that was written way back when. So yes, I do believe the constitution is a relevant as people make it out to be.