What is an adage?

An adage is a familiar proverb or wise saying that conveys a general truth or observation about life. It often reflects common wisdom and is typically handed down through generations, becoming part of the cultural heritage. Adages are usually straightforward and memorable, making them easy to recall and share. They are used to express shared experiences, offer advice, or impart moral lessons. This aligns perfectly with the definition of an adage, focusing on its nature as a concise expression of wisdom.

The other choices do not capture the essence of an adage. A formal declaration or proclamation is more concerned with official statements rather than wisdom or advice. A detailed account of historical events relates to narrative and factual recounting, which does not fit the nature of a proverb. A poetic expression of a single thought, while potentially reflective or profound, lacks the established cultural recognition and familiarity that characterize an adage. Hence, the definition provided in the context of this question precisely aligns with the characteristics of an adage.