Best Bets for Philosophy
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EEBO contains page images of almost every work printed in England, Ireland, Scotland, Wales and British North America and works in English printed elsewhere from 1470-1700. From the first book printed in English through to the ages of Spenser, Shakespeare and of the English Civil War, EEBO's content draws on authoritative and respected short-title catalogues of the period and features a substantial number of text transcriptions.
The Text Creation Partnership, which provides highly searchable versions of the texts, made the first 25,000 works freely available in 2015. This interface, at the University of Michigan, allows proximity and boolean searching within the available works, but does not search the full EEBO database.