A more thorough explanation:

EX JURE NATURAE

Ex jure naturae is a Latin term that means "according to the law of nature."

The law of nature refers to the principles and rules that govern the natural world. Ex jure naturae is often used in legal contexts to refer to laws that are based on natural principles, rather than man-made laws. It suggests that certain rights and obligations are inherent in human nature and can be understood through reason and observation of the natural world.

One example of ex jure naturae is the idea that all human beings have a right to life, liberty, and the pursuit of happiness. This principle is often cited in discussions of human rights and is seen as a fundamental aspect of human nature.

Another example is the concept of self-defense. Many legal systems recognize that individuals have a natural right to defend themselves against harm, even if there is no specific law that allows them to do so.

These examples illustrate how ex jure naturae can be used to describe laws and principles that are based on natural rights and obligations, rather than laws that are created by human societies.