A Random Post About A Puzzle

For the final day of the Student Blogging Challenge of 2021, we were tasked with writing a blog post about anything! So for mine, I am going to make a puzzle. I am going to give you a bunch of “random” letters, and a bunch of numbers. I will have 4 cubes of letters. Let’s see if you can figure it out. Put your guesses in the comments.

Hint: The answer is a quote by a famous person that died in 1970.