jungle law —(also: law of the jungle) the superiority of brute force or self-interest in the ruthless struggle for survival:
- It was awkward having to explain jungle law to someone who had never emerged from a well-kept shrubbery.
natural law —(also: law of nature)
1. is used to refer to a particular phenomenon always occurring if certain conditions are present:
- Gravity is a natural law (a law of nature) that is dependable and constant.
2. is used of ideas, etc. as implanted by nature in the human mind:
- In political theory, Spinoza argued that human beings fundamentally act in accordance with natural law.