This book is an introduction to philosophical ethics intended for use in introductory college or high school level courses. It has grown out of lecture notes I shared with the first students who took my online Ethics course at the Pennsylvania College of Technology almost 20 years ago. Since then it has seen more development in a variety of forms – starting out as a pdf document, and then evolving into a static set of WordPress pages and finally now as a book written in bookdown and hosted at GitHub. This text represents my attempt to scratch a couple of itches. The first is my wanting a presentation of the major philosophical approaches to ethics that I can actually agree with and that is integrated into my overall teaching method. I tend to teach philosophy to beginners and so there is a fair amount of discussion of the tools used by philosophers and of the ways in which their approach differs from that of their colleagues in other disciplines.

There are of course many good quality ethics textbooks out there, and yet none has exactly matched my way of wanting to present the material. Teaching ethics over the years has been a process of active exploration and constant revision of my approach as I have come to a more nuanced and richer appreciation of what ethical thinking and theorizing is all about, as well as some ideas about how I think the main strands of argument relate to each other. Yes this is a partisan effort, but it’s all subject to revision and refinement based on, I hope at least, the better argument. That’s what I am trying to get across here.

The second itch I am trying to scratch has to do with initiatives in open education, and I’d like this text to contribute in its own small way to the much larger and more influential open source movement and philosophy of which I consider it a part. Knowledge is only ours to share. Yes of course writers, developers and publishers do hard work that deserves compensation. But intellectual property, it seems to me, is a false idol that deserves to be smashed. So here is my effort to chip away at it – knowledge should free us and and not sink us into both literal and figurative debt.

Table of Contents:
I Some Preliminaries
1 The Examined Life
2 A Little Bit of Logic
3 Fallacies and Biases

II Ethics Culture and Religion
4 Relativism
5 Religion and Ethics

III Reconstructing Norms
6 Egoism
7 Social Contract Theory
8 Utilitarianism
9 Kant and the ethics of duty

IV Applied Ethics
10 Theory in Practice
11 Euthanasia
12 Liberty and its Limits
13 Crime and Punishment
14 Animals and Ethics
15 Ethics and the Environment

Philosophical Thought: across cultures and through the ages, is an open-educational resource (OER) to be used as a collection of readings for introductory philosophy courses. The objectives for developing and sharing this open resource are three-fold:

1. to provide a collection of philosophical works that can be used as a foundation for faculty and students to use in undergraduate philosophy courses
2. to provide a resource that is free to students
3. to provide a resource that compiles philosophical thought from a variety of cultures and eras

The works included in this book come from a wide range of sources. However, this book is indebted to Henry Imler’s editorial work on Sapienta and Phronesis, both of which are OER texts available on Pressbooks.

Introduction to the problems, history and nature of philosophy with reading and discussion of selected writings from the Pre-Socrates to the present, focusing on traditional Western philosophical issues.

Part I of the text is a survey of ethical systems, methods of determining the right thing to do and how to reforge ourselves and communities, so that we might be humble, wise, and just. Part II of the text looks at short selections of speeches and readings from a variety of philosophers arguing for particular ethical principles, discussing what makes for a good life, the degree to which we can offload our moral thinking onto the divine, analysis of systems of power, and how to conceptualize and respond to uneven moral and political structures in society. The last part of the text is a series of applied ethical issues, such as reproductive rights, environmental ethics, animal rights, and so on.

This book is a lucid and accessible companion to Plato’s Republic, throwing light upon the text’s arguments and main themes, placing them in the wider context of the text’s structure. In its illumination of the philosophical ideas underpinning the work, it provides readers with an understanding and appreciation of the complexity and literary artistry of Plato’s Republic. McAleer not only unpacks the key overarching questions of the text – What is justice? And Is a just life happier than an unjust life? – but also highlights some fascinating, overlooked passages which contribute to our understanding of Plato’s philosophical thought.

Plato’s 'Republic': An Introduction offers a rigorous and thought-provoking analysis of the text, helping readers navigate one of the world’s most influential works of philosophy and political theory. With its approachable tone and clear presentation, it constitutes a welcome contribution to the field, and will be an indispensable resource for philosophy students and teachers, as well as general readers new to, or returning to, the text.

Textbook for Calgary's Logic II course based on the Open Logic Project. Covers naive set theory, first-order logic, sequent calculus and natural deduction, the completeness, compactness, and Löwenheim-Skolem theorems, Turing machines, and the undecidability of the halting problem and of first-order logic.

Thinking Well is a Creative Commons Logic and Critical Thinking Textbook. The emphasis is on clarity of step-by-step instructions and a dialogic format to make it as accessible to a wide variety of ages of skill-levels as possible.

Words of Wisdom can come from anyone. In this text we discuss topics ranging from "Are Humans good by nature?" to "Is there a God?" to "Do I have the right to my own opinion?" Philosophy is the study of wisdom, and can emerge in our conversations in places like social media, in school, around the family dinner table, and even in the car. The text uses materials that are 2,500 years old, and materials that were in the news this year. Wise people come in all shapes and types, and from every culture on earth. We have poetry and folktales, sacred writings and letters. Dialogues and interviews, news columns, podcasts, Ted Talks, You Tube recordings and even comedy are all a part of the content in this text.You will be most successful using this collection this on line.

forall x is a full-featured textbook on formal logic. It covers key notions of logic such as consequence and validity of arguments, the syntax of truth-functional propositional logic TFL and truth-table semantics, the syntax of first-order (predicate) logic FOL with identity (first-order interpretations), translating (formalizing) English in TFL and FOL, and Fitch-style natural deduction proof systems for both TFL and FOL. It also deals with some advanced topics such as truth-functional completeness. Exercises with solutions are available. It is provided in PDF (for screen reading, printing, and a special version for dyslexics) and in LaTeX source code. A proof editor/checker for the proof system used is available at http://proofs.openlogicproject.org/.