Final answer:
The five sources of evidence commonly used in philosophy are testimonies, authorities, reasoning, intuition, and experience. Among these sources, experience is the only empirical source. a) Testimonies, authorities, reasoning, intuition, and experience
Step-by-step explanation:
The five sources of evidence commonly used in philosophy include testimonies, authorities, reasoning, intuition, and experience.
Testimonies are any utterances spoken or written in normal communication conditions while authorities refer to the opinions or beliefs of experts. Reasoning involves using logical arguments to support claims, while intuition is a direct and immediate understanding without the need for conscious reasoning. Experience refers to personal observations and encounters with the world.
Among these sources, experience is the only empirical source, as it relies on direct observation and personal encounters with the world. Testimonies, authorities, reasoning, and intuition do not require direct observation or experimentation.