By far the best book of quotations in my opinion is THE OXFORD DICTIONARY OF QUOTATIONS.

You can use the Oxford English Dictionary (OED) and thesaurus through their online platform or app. The OED offers comprehensive definitions and word histories, while the thesaurus provides synonyms and antonyms for words. Both tools are widely respected for their accuracy and depth of information.

The Oxford English Dictionary (OED) was first published in Oxford, England.

Oxford Dictionary of English was created in 1998.

Oxford Latin Dictionary was created in 1968.