Skip to content
HeightsCast

Knowing How to Know: On Law School and Other Professional Discernments

How many of us wondered at some point in our lives: “Should I go to law school?”

It’s a common question as one approaches college graduation. Students find themselves on that “moving walkway” toward the future: it will go forward, but at which stop should they get off? How can they pick a path on purpose—and not due to momentum?

Heights upper school teacher Mark Grannis spent decades practicing law, even co-founding his own DC firm. Knowing many lawyers, one-day lawyers, and would-have-been lawyers in every stage of professional development, he noticed some patterns of discernment that genuinely helped people decide whether the law vocation was for them. This spring, he released Should You Go to Law School? Knowing How to Know, a guide that addresses law in particular and professional/vocational discernment in general.

Mr. Grannis encourages people considering any career vocation to take stock of their academic and emotional talents, imagining where those can best be applied for the benefit of others.

Chapters:

3:29 The genesis of the book
6:51 Grannis’s professional background
11:54 What a lawyer really does
15:33 Seeing career in vocational terms
19:50 Three lawyer temperaments: past, present, and future
24:23 Bad reasons to go to law school
26:33 The one good reason
29:10 Three questions for vocational discernment
33:20 The infinite, imaginative possibilities of work
39:42 AI and the future of law
43:47 Choosing a law school—or not

Links:

Should You Go to Law School? Knowing How to Know by Mark Grannis

Logic Lectures, online lectures featuring Mark Grannis

The Reasonable Person: Traditional Logic for Modern Life by Mark Grannis

The Reasonable Person: Teacher Supplement by Mark Grannis

The Three Key Questions featuring Fr. Michael Himes

Also on the Forum:

A Doctor, a Lawyer, and a Cop Walk into a Boys School featuring Rob Liotta, Mark Grannis, and Josue Zelaya on the Forum Faculty Podcast

Vocational Discernment in an Age of Infinite Options featuring Fr. Carter Griffin and Alvaro de Vicente

Logic: On Forming the Reasonable Person featuring Mark Grannis

Logic and the Reasonable Person by Mark Grannis

Featured Opportunities:

Convivium Conference for Teaching Men at The Heights School (November 11-13, 2026)

About the Author

Mark Grannis

Philosophy, History

Mark Grannis teaches logic and history at The Heights. He is the author of The Reasonable Person: Traditional Logic for Modern Life, and most recently posts his classroom quotes of the day at markgrannis.substack.com.

 

Learn More

Subscribe to The Heights Forum Newsletter

Name(Required)
I'm interested in content for...
Select if you'd like to receive a monthly newsletter specifically for any of these educator roles.
This field is for validation purposes and should be left unchanged.