The coexistence of purity and impurity, representing a spectrum of moral and ethical qualities in people or actions.

The contrast between clear and muddy, often used to describe sounds, indicating both clarity and lack of clarity in various contexts.

A philosophical concept that distinguishes between virtuous and non-virtuous individuals, highlighting moral character and integrity.

The difference between refined and unrefined elements, applicable in contexts such as beverages or artistic expressions, suggesting a blend of sophistication and rawness.