The Constitution of the US is an instrument for the people to restrain the government.
The Constitution of the US is a living document only in that it is timeless by the expression of what it says while society and the facts a judge may get presented are in flux.
The Constitution of the US is a pantheon of values, remarkable in that it offers no simple rule of decision for the cases in which one of the values is truly at odds with another.
The Constitution of the US is a mere thing of wax in the hands of the judiciary, which they may twist and shape into any form they please.
The Constitution of the US is a 'process' in that it is a document that changes by an amendment process set forth in the document itself.
The Constitution of the US is a superior paramount law, unchangeable by ordinary means. The very essence of judicial duty it that it is emphatically the province and duty of the judicial department to say what the law is.
The Constitution of the US is a project of ongoing interpretation. The founding fathers intentionally made some passages vague and/or general because they expected that people who came along later would have an obligation to do their part in continuing the project.