What does natural law suggest about moral laws?

Natural law theory posits that moral laws are universal and can be understood through human reason. This suggests that inherent moral principles exist within the nature of humans and the universe, allowing individuals to discern right from wrong through rational thought and observation. The concept emphasizes the idea that morality is not solely derived from societal norms, legislation, or cultural context, but rather can be known objectively by all rational beings. This grounding in human reason allows for a consistent understanding of moral truths that transcends specific cultures or communities, supporting the validity of moral claims based on rational deliberation.

In contrast, the other options suggest that moral laws are significantly influenced by external factors like culture or legislative definitions, which conflicts with the fundamental tenet of natural law that asserts the existence of universally applicable moral principles independent of such factors.