"A good FORTRAN programmer can write FORTRAN in any language"

We're all stuck writing COBOL now.

“I used to be a mathematics professor. At that time I found there were a certain number of students who could not learn mathematics. I then was charged with the job of making it easy for businessmen to use our computers. I found it was not a question of whether they could learn mathematics or not, but whether they would. […] They said, 'Throw those symbols out—I do not know what they mean, I have not time to learn symbols.' I suggest a reply to those who would like data processing people to use mathematical symbols that they make the first attempt to teach those symbols to vice-presidents or a colonel or admiral. I assure you that I tried it.” — Grace Hopper

It’s not Fortran style, but the code of the original Bourne shell is a remarkable piece. “How to write Algol in C”

"Real Programmers Don't Use PASCAL": https://homepages.inf.ed.ac.uk/rni/papers/realprg.html