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

Do not accept anything because it comes from the mouth of a respected person. -- Buddha

We now come to the decisive step of mathematical abstraction: we forget about what the symbols stand for. ...[The mathematician] need not be idle; there are many operations which he may carry out with these symbols, without ever having to look at the things they stand for. -- Hermann Weyl, The Mathematical Way of Thinking

Humans aren't rational -- they rationalize. And I don't just mean "some of them" or "other people". I'm talking about everyone. We have a "logic engine" in our brains, but for the most part, it's not the one in the driver's seat -- instead it operates after the fact, generating rationalizations and excuses for our behavior. -- Paul Buchheit

Processors don't get better so that they can have more free time. Processors get better so _you_ can have more free time. -- LeCamarade (freeshells.ch)

Something Confusing about "Hard": It's tempting to think that if it's hard, then it's valuable. Most valuable things are hard. Most hard things are completely useless -- (picture of someone smashing their head through concrete blocks kung-fu style). Hard DOES NOT EQUATE TO BEING valuable. Remember Friendster back in the day? You'd sign in, invite friends, have 25 friends, go to their profile, and then it'd show how you were connected to each one. That's an impressive [some geeky CS jargon] Cone traversal of a tree - 100 million string comparisons per page -- it won't scale. Used to take a minute per page to load, and Friendster died a painful death. MySpace -- not interested in solving problems They use the shortcut of "Miss Fitzpatrick is in your extended network" (i.e. even when you're not even signed up for MySpace) They didn't solve the hard problem. But they make the more relevant assumption that you want to be connected to hot women. [LOL] Shows Alexa graph showing that in early 2005 Myspace took off, and quickly bypassed Friendster and never looked back. -- Max Levchin, PayPal founder, Talk at StartupSchool2007

Our greatest fear should not be of failure but of succeeding at things in life that don’t really matter. ~Francis Chan

Change your thoughts and you change your world. –Norman Vincent Peale

15.Life is 10% what happens to me and 90% of how I react to it. –Charles Swindoll

The number one reason people fail in life is because they listen to their friends, family, and neighbors. ~Napoleon Hill