Mathematics (n.) is the most original creation of the human spirit.
Mathematics (n.) is the development of all types of formal, necessary and deductive reasoning.
Mathematics (n.) is thought moving in the sphere of complete abstraction from any particular instance of what it is talking about.
Mathematics (n.) in its general sense studies patterns of connectedness, abstracted from the particular things connected and the particular modes of connection.
Mathematics (n.) can tell you whether the atoms in your apple are odd or even in number — but don't ask it to supply the apple, the atoms, or their finiteness.
Mathematics (n.) spun from pure imagination finds its use in the end, though it may have to wait: conic sections waited eighteen hundred years.
Mathematics (n.) was muddled with magic among medieval Christians — none of them advanced it before the Renaissance except Leonardo of Pisa, and even a Pope hardly escaped the confusion.
Mathematics (n.) deals in eternal objects of the objective kind: they can only bring one thing into another, never colour a feeling — and the solidarity of the world rests on their incurable objectivity.