"The science of pure mathematics . . . may claim to be the most original creation of the human spirit." - Science and the Modern world.
"The theory of probability as mathematical discipline can and should be developed from axioms in exactly the same way as Geometry and Algebra." - Andrey Kolmogorov, Foundations of the Theory of Probability.
"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater." - Einstein
Mathematics Software -- Collection of more than 100 Mathematics Software.