Answer:
The quote "A much -used plow shines; stagnant waters stink" relates to CPD as this professional skill enhancement process will keep the person learning and 'developing' his skills and not be 'stagnant', 'stable' or 'dormant'.
Explanation:
CPD is the long-form for Continuing Professional Disorder, referring to the term used to describe the learning activities of professionals in enhancing and developing their abilities. This process involves a certified learning method for the development of skills.
The Estonian proverb <em>"A much-used plow shines; stagnant waters stink" </em>can be related to this CPD in that it states how anything that's constantly used and polished remains active, "shines". In this case, a plow that's used often helps keep it sharp and shining.
On the other hand, anything (the stagnant water metaphor) that stays dormant and stable, not moving or getting into any action will only render it useless.
Likewise, the process of polishing and learning, developing, and enhancing one's skills will help better the person in his career. And in this process of CPD, the professionals will continue to learn even after they finish their course, thereby 'sharpening' their skills. Unlike other 'professional enhancement process', this process will keep them learning and not make them 'stagnant'.
