Solution By Steps

Step 1: Identify the Key Concepts

The question asks about the most objective basis for language. The options provided are opinion, beliefs, thoughts, and evidence.

Step 2: Define Objectivity in Language

Objectivity in language refers to the quality of being unbiased and based on facts or evidence rather than personal feelings or opinions.

Step 3: Evaluate Each Option

Opinion: Personal and subjective, not objective.

Beliefs: Often based on personal or cultural perspectives, not necessarily objective.

Thoughts: Can be influenced by personal biases and are not always objective.

Evidence: Based on observable facts or data, which are objective.

Step 4: Select the Most Objective Basis

Among the options, evidence is the most objective basis as it relies on verifiable facts rather than personal perspectives.

Final Answer

Language is most objective when based upon evidence.

This concept is significant because it emphasizes the importance of using factual and verifiable information in communication, which enhances clarity and reduces misunderstandings. It is particularly crucial in fields like science, law, and journalism where accuracy and reliability of information are paramount.