What did Galileo say were the letters of Mathematical language
Well, Galileo never said this himself, but I can try to give you a funny answer anyway!
Galileo once said that the letters of the Mathematical language were A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z. And you know what, I totally agree with him. Because without these letters, how would we spell "algebraic equations"? They're the true heroes of Math!