2. Knowledge itself does not tell people how to use it, and the way to use it is outside books. This is a skill that cannot be learned without experiment. bacon
What pleases me most about mathematics is what can be proved. Bertrand Russell
Give me five coefficients and I will draw an elephant. Give me six coefficients and the elephant will wag its tail. -Cauchy
Mathematics, if viewed correctly, has not only truth, but also supreme beauty. Bertrand Russell