Philosophers and Welders

I did not watch the Republican Presidential Candidates debate last night, but evidently Marco Rubio talked about if you don't honor philosophers or welders, society will suffer.  I think I know where that comes from.  Years ago, I had a poster, and I cannot remember the exact wording but it was something like this:

The society that exalts philosophers for being a glorified profession, and disparages plumbers for being a humble profession, will neither have good philosophers nor good plumbers. 

In other words, neither its theories nor its pipes will hold water.