Thomas Taylor’s translation of Porphyry’s Introduction (the Isagoge) serves as the traditional gateway to the study of logic and philosophy, preparing the student to read Aristotle with clarity and precision. In this brief but profound work, Porphyry explains the nature of genera, species, differences, properties, and accidents—the essential tools by which the intellect learns to define things correctly and reason about them without confusion. Taylor’s translation reflects the careful exactness required by this foundational text, preserving its technical language and philosophical rigor. For students entering the classical logical tradition, Porphyry’s Introduction provides the necessary groundwork for disciplined thought and establishes the conceptual framework upon which the whole science of logic is built.
- Porphyry, Introduction. Chapter 1
- Porphyry, Introduction. Chapter 2
- Porphyry, Introduction. Chapter 3
- Porphyry, Introduction. Chapter 4
- Porphyry, Introduction. Chapter 5
- Porphyry, Introduction. Chapter 6
- Porphyry, Introduction. Chapter 7
- Porphyry, Introduction. Chapter 8
- Porphyry, Introduction. Chapter 9
- Porphyry, Introduction. Chapter 10
- Porphyry, Introduction. Chapter 11
- Porphyry, Introduction. Chapter 12
- Porphyry, Introduction. Chapter 13
- Porphyry, Introduction. Chapter 14
- Porphyry, Introduction. Chapter 15
- Porphyry, Introduction. Chapter 16
- Porphyry, Introduction. Chapter 17