1. a. Love and pursuit of wisdom by intellectual means and moral self-discipline. b. The investigation of causes and laws underlying reality. c. A system of philosophical inquiry or demonstration.

2. Inquiry into the nature of things based on logical reasoning rather than empirical methods.

3. The critique and analysis of fundamental beliefs as they come to be conceptualized and formulated.

4. The synthesis of all learning.

5. All learning except technical precepts and practical arts.

6. All the disciplines presented in university curriculums of science and the liberal arts, except medicine, law, and theology.

7. The science comprising logic, ethics, aesthetics, metaphysics, and epistemology.

8. A system of motivating concepts or principles: the philosophy of a culture.

9. A basic theory; a viewpoint: an original philosophy of advertising.

10. The system of values by which one lives: has an unusual philosophy of life.