An idea is always a generalization, and generalization is a property of thinking. To generalize means to think.

Summary

This quote emphasizes that an idea is a form of generalization and that generalization is a fundamental aspect of thinking. By generalizing, we are able to extract commonalities or patterns from specific instances, leading to abstract concepts and ideas. Therefore, thinking involves the process of generalization, enabling us to derive meaningful deductions and observations from the complexity of the world around us.