A tail call allows a function to return the result of another function without leaving an entry on the stack. Tail recursion is a specific case of tail calling. -- ASPN : Python Cookbook : Explicit Tail Call

An investment in knowledge always pays the best interest. -- Benjamin Franklin

Nobody can make you feel inferior without your consent. -- Eleanor Roosevelt

Everything should be made as simple as possible, but no simpler. -- Albert Einstein

It’s hard to grasp abstractions if you don’t understand what they’re abstracting away from. -- Nathan Weizenbaum

Functional programming is like describing your problem to a mathematician. Imperative programming is like giving instructions to an idiot. -- arcus, #scheme on Freenode

If you are not willing to risk the usual you will have to settle for the ordinary. ~Jim Rohn

Fall seven times and stand up eight. –Japanese Proverb

Everything you’ve ever wanted is on the other side of fear. –George Addair

A real entrepreneur is somebody who has no safety net underneath them. ~Henry Kravis