Final answer:
Morality is a subject of debate regarding its subjectivity or objectivity, with arguments stemming from philosophers like Hume and those who advocate for 'telos'. Philosophers' moral philosophies often have systematic reasoning and seek universal applicability.
Step-by-step explanation:
The question of whether morality is subjective comes down to ongoing debates within philosophical circles. Philosophers like David Hume suggest that morality is linked to human sentiments and thus subjective, while moral realists argue that there are objective moral facts.
On the other hand, some philosophers refer to 'telos', indicating that values can be objectively assessed based on whether they fulfill a certain goal. What distinguishes a philosopher's moral philosophy is often the level of systematic reasoning, depth of analysis, and engagement with a wide body of philosophical discourse. Philosophers traditionally aim to construct moral theories that are logically coherent and can apply universally, regardless of individual human experience or cultural beliefs. However, it should be noted that a well-reasoned moral philosophy may come from anyone, not just professional philosophers, provided it involves critical thinking and a robust justification.