But some teachers believe the subjective nature of the marking system in English is at the heart of the problem.

BBC: GCSE English: How is it marked?

The first major scoring controversy of the London Games again highlighted the subjective nature of gymnastics, one of the few Olympic sports that rely on judges.

WSJ: London 2012: Chinese Men Take Gymnastics Gold

Trade is subjective by nature.

FORBES: Connect

If wine is, as we believe, a subjective, subtle, and experiential thing, then by nature it is unquantifiable.

FORBES: Wine of the Week: 2009 Hedges Family Estate DLD Syrah

Given the nature of the surgery, where so much is based on subjective interpretations of the final product, a patient might be unhappy with her, or his, new appearance even though the result was entirely predictable.

CNN: Not everyone's a good plastic surgery candidate