What are the Four Pillars of Grand Canyon University? Which of the Four Pillars do you feel is the most and/or the least important?

What are the Four Pillars of Grand Canyon University? Which of the Four Pillars do you feel is the most and/or the least important? Please explain why.

http://blogs.gcu.edu/blog/what-are-the-four-pillars-of-grand-canyon-university/

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