David Dallas - Life is

Life is just a series of peaks and troughs
And you don't know whether you're in a trough until you're climbing out
Or on a peak until you're coming down
That's it; you know, you'll never know what's around the corner, but it's all good, you know
"If you want the rainbow, you'll have to put up with the rain"
You know which 'philosopher' said that?
Dolly Parton. And people say she's just a big pair of tits