The text of the Quran is version 1.0.2 from http://tanzil.net, distributed under the terms of a Creative Commons Attribution 3.0 License. To quote their terms of use:
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The texts of Herodotus are from the Perseus Digital Library, http://www.perseus.tufts.edu, distributed under the terms of a Creative Commons Attribution 3.0 License.
The poetry of Hafez is from the Open Persian Project of Leipzig University, http://www.dh.uni-leipzig.de/wo/open-philology-project/open-persian/, Gregory Crane, Saeed Majidi, and Maryam Foradi, edd. Distributed under the terms of a Creative Commons 3.0 Attribution License.
The Greek text of Plutarch is from the edition of Ziegler, published on Archive.org http://www.archive.org and released into the Public Domain. Preparation of this digital edition was funded by a grant from the Andrew W. Mellon Foundation.
The English text of Plutarch is from the Perseus Digital Library, http://www.perseus.tufts.edu, distributed under the terms of a Creative Commons Attribution 3.0 License.
All Latin Texts from Holy Cross Free Latin and Greek editions, distributed under the terms of the Creative Commons 3 Attribution-Share-Alike License, derived from Tesserae project edition (http://tesserae.caset.buffalo.edu/sources.php) derived from Perseus project edition (http://www.perseus.tufts.edu/hopper/collection?collection=Perseus%3Acollection%3AGreco-Roman)
All Latin texts from CroALa, the Croatiae auctores Latini bibliotheca electronica, Neven Jovanović, editor, http://croala.ffzg.unizg.hr are reproduced here in derivative versions, according to the terms of the Creative Commons Attribution 4.0 International License https://creativecommons.org/licenses/by/4.0/
All texts from the Homer Multitext, Casey Dué and Mary Ebbott, edd., http://www.homermultitext.org, are redistributed according to the terms of the Creative Commons Attribution, Non-Commercial 4.0 License https://creativecommons.org/licenses/by-nc/4.0/.