The phrase "founding principal" refers to the person who establishes or starts something, like a school or an organization, and plays a key role in its initial development and setting the course for its future. Full definition
The only founding principal of evolution is, though many will deny it, survival of the best adapted mutation. (religion.blogs.cnn.com)
You can't find a principal who won't say this is a huge pain for them as well as a big opportunity to have an impact on students and teachers. (educationnext.org)
The way around this problem is to find a principal payment pattern that keeps the total overall payment the same. (finpipe.com)