A warning to linguists from Milton

The other day I came across this marvelous quote. With a wink and a smile, I offer this to my linguist friends. Of Education, by John Milton

Language is but the Instrument conveying to us things usefull to be known. And though a Linguist should pride himself to have all the Tongues that Babel cleft the world into, yet, if he have not studied the solid things in them as well as the Words & Lexicons, he were nothing so much to be esteem’d a learned man, as any Yeoman or Tradesman competently wise in his Mother Dialect only.