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Loyola University Chicago Libraries


Locate core research resources in philosophy and ethics

On this Page

In philosophy, a primary source is an original work by a philosopher while secondary source is an analysis, contextualization, critique, or reflection on that philosopher's work.

Please scroll down to find primary source text and document collections organized by period as follows:

Classical (through 600)
Medieval (600 to 1500)
Early Modern (1500 to 1800)
Modern (1800 forward)

These are followed by secondary source text and document collections.

Text and Document Collections: Classical Period

Text and Document Collections: Medieval Period

Text and Document Collections: Early Modern Period

Text and Document Collections: Modern Period

Secondary Sources: Interdisciplinary Handbook Series for Philosophy

Topical handbooks written for undergraduate learners, each accessible through its library catalog record linked below. All share a 2017 publication date from Gale/Macmillan.

Secondary Sources: Others for Philosophy