Mathematics is the study of anything that obeys the rules of logic, using the rules of logic.

— Eugenia Cheng, How to Bake Pi: Easy recipes for understanding complex maths (2015)

Source: https://books.google.co.uk/books?id=UzKVBgAAQBAJ

From Eugenia Cheng's 2015 book How to Bake Pi.

Topics: mathematics