I don't think they did their arithmetic correctly. I think they needed an accountant to go over the numbers.

Touring helped me understand where I needed to be better in my music.

Anyone who considers arithmetical methods of producing random digits is, of course, in a state of sin.

"Can you do addition?" the White Queen asked. "What's one and one and one and one and one and one and one and one and one and one?" "I don't know," said Alice. "I lost count."

The different branches of Arithmetic--Ambition, Distraction, Uglification, and Derision.

"Obvious" is the most dangerous word in mathematics.