Tigger or Eeyore?

Wow! I really admire this man. Randy Pausch, a computer science professor at Carnegie Mellon, who has been diagnosed with terminal cancer is still blogging on his website .
I had watched his “Last Lecture” on YouTube and I have also read the book which includes more background information and is absolutely beautiful. There is a chapter called “Make a decision: Tigger or Eeyore” I would like to quote from:

I came to a realization about this very early in my life. As I see it, there`s a decision we all have to make, and it seems perfectly captured in the Winnie-the-Pooh characters created by A. A. Milne. Each of us must decide: Am I a fun-loving Tigger or am I a sad-sack Eeyore? Pick a camp. I think it`s clear where I stand on the great Tigger/Eeyore debate.

For those of you who are not familiar with the Winnie-the-Pooh stories:

Tigger is a cheerful, outgoing Tiger, competitive in a friendly way, and completely confident in himself. In the Tigger Song he says about himself:

The most wonderful thing about Tiggers,
is Tiggers are wonderful things. (…)
They`re bouncy, trouncy, flouncy, pouncy,
Fun! Fun! Fun! Fun! Fun!

In contrast to Tigger, Eeyore is a pessimistic, gloomy, old, beautiful, depressed, grey stuffed donkey. He is commonly characterized by his walking style with his head down suggesting a constant depressed state.