• Noun: a belief (or system of beliefs) accepted as authoritative by some group or school
• Noun: the rational investigation of questions about existence and knowledge and ethics
• Noun: any personal belief about how to live or how to deal with a situation; examples: "self-indulgence was his only philosophy", "my father's philosophy of child-rearing was to let mother do it"
As a universal history of philosophy, the history of philosophy must become one great unity.
Art requires philosophy, just as philosophy requires art. Otherwise, what would become of beauty?