Why This Book Exists
Only a small fraction of students today receive any direct training in logic or critical thinking — and most of what remains is a truncated, centuries-old version of Aristotelian logic. At the same time, the ability to produce images, audio, and video that are practically indistinguishable from reality has never been more accessible. The ability to discern truth from what's right in front of us has never mattered more, or been less common.
For the Love of Truth teaches Philalethic Logic: a complete reasoning system that is quantified, compound, modal, and symbolic — and, above all, practical. It's grounded in how the human mind actually works, rather than treated as a purely abstract exercise. It uses a simplified, intuitive symbolic grammar. It takes compound operators like disjunction and implication seriously in their full modal sense, resolving confusions that plague more conventional systems. And it relies on one consistent validation method — truth-tree decomposition — carried all the way through, rather than switching techniques chapter to chapter.
The project is built around three coordinated resources: the main text itself, a Teacher & Parent Supplement for anyone teaching it who hasn't necessarily studied formal logic before, and a Student Workbook of additional practice labs for independent study. Live online seminars are also in development for anyone who'd like to learn alongside an instructor.
About the Author, Seth Murray
I am a teacher, tutor, philosopher, programmer, husband, father, grandfather, priest/pastor, martial artist, and lifelong student of reasoning. I created Philalethic Logic out of the conviction that logic should serve truth, understanding, and human communication.
For more than four decades, I have worked with formal systems, beginning with computer programming and later extending into physics, engineering, philosophy, theology, and formal logic. I hold a bachelor’s degree in physics and engineering, a master’s degree in theological studies, and a master’s degree in philosophy. I have also completed extensive doctoral-level study in philosophy, the humanities, and Christian counseling.
I have taught logic in high-school academies and at the college level, and I have tutored thousands of students from around the world. Through that experience, I have repeatedly encountered a problem: conventional approaches to logic often teach students how to apply formal procedures without adequately explaining what claims mean, how ideas are formed, or how logical structures relate to reality and ordinary human thought.
Philalethic Logic grew out of my long effort to address that problem.
The word philalethic means truth-loving or directed toward truth. My aim is not merely to teach people how to manipulate symbols or reproduce accepted argument forms. I seek to develop a humane approach to logic—one grounded in the ways we identify things, form ideas, make claims, communicate meaning, and seek truth together.
My background in computer programming has made me attentive to precision, structure, and formal consistency. My work in philosophy has trained me to examine assumptions and distinctions carefully. My experience as a teacher has shown me where standard explanations confuse students or conceal unresolved problems. My theological and pastoral work has reinforced the importance of pursuing truth with humility, patience, and charity.
The result is an approach to logic that strives to be rigorous without becoming mechanical, formal without becoming detached from experience, and practical without sacrificing philosophical depth.
I offer Philalethic Logic for students, teachers, philosophers, programmers, theologians, and anyone who wants to reason more clearly about the world as it is.