Eminent Domain

Great postings and I appreciate you time and efforts in this great event. Some say that the real meaning of "life, liberty, and the pursuite of happiness" as so stated in the Declaration of Independence and in other founding documents actually means life, liberty, and owning land. I have been searching where this is explained and if any of you find it let me know. The fifth amemdment says "nor private property be taken for public use without just compensation". How then could the Supreme Court rule against land owners in the fairly recent eminent domain case? It seems to weight in favor of municipalities who decide that a specific piece of land would better serve the public if used for a highway or a park or something else and how do we ensure that the owner is given fair value for his or her land? Let me know what you think.