Felt like it!

1. An nth order ODE can always be reduced to a set of first order ODE's.
2. Every scientific theory has to be as simple as possible, but not simpler.
3. Every complex problem can be reduced to simpler problems that should seek a simultaneous circumventing solution.
4. The point above has little reference to mathematics.
5. Statement 3 was once the repartee from the mouth of a very intelligent man.