Natural Law Theory is a philosophical concept that suggests there are inherent laws derived from nature and human reason. These laws are universal and can be understood through human intellect, guiding moral behavior and legal systems. The theory posits that certain rights and values are fundamental to human existence, regardless of societal or governmental laws. This theory has roots in the works of philosophers like Aristotle and Thomas Aquinas, who argued that human beings can discern right from wrong through rational thought. Natural Law Theory has influenced various fields, including ethics, political theory, and jurisprudence, shaping discussions about justice and morality throughout history.