This may come as a surprise, but having a good attitude does not always come naturally to me. In fact, there are days when—if I got there—it probably took a some work.
Sure, the Sun is always shining! I know that! But when I look around and see a world full of injustice, corruption, confusion, melting ice caps, and dying coral reefs, I tend feel the weight of these things a little more than any excitement over the Sun (which, they say, may actually burn us all up in a few years or so, according to the internet).