The only thing that it is advisable to know in any language is the numerals; and even there, you can do a lot with the fingers.
Do you think Arabs are dumb? They gave us our numbers. Try doing long division with Roman numerals.
I've been playing the game so long that my handicap is in Roman numerals.
Object-oriented design is the roman numerals of computing.
Numerals are images of amounts. But the amounts they represent are real.
Programming graphics in X is like finding the square root of PI using Roman numerals.
How do you write zero in Roman numerals?