i am adamant about this.

somebody said that it couldn't be done,
but he, with a chuckle, replied
that maybe it couldn't, but he would be one
who wouldn't say so til he tried.
so he buckled right in with a trace of a grin
on his face - if he worried he hid it,
and he started to sing as he tackled the thing
that couldn't be done - and he did it!

this is part of a poem by edgar a. guest [edgar, a guest]. there are many who deride him as a saccharine simpleton, but i am a huge fan of his little ditties and their ant-and-rubber-tree theme. that first verse i have memorized, but the rest not so much. i'll just paste it in here for your enjoyment.

Somebody scoffed: "Oh, you'll never do that;
At least no one ever has done it";
But he took off his coat and he took off his hat,
And the first thing we knew he'd begun it.
With a lift of his chin and a bit of a grin,
Without any doubting or quiddit,
He started to sing as he tackled the thing
That couldn't be done, and he did it.

There are thousands to tell you it cannot be done,
There are thousands to prophesy failure;
There are thousands to point out to you, one by one,
The dangers that wait to assail you.
But just buckle in with a bit of a grin,
Just take off your coat and go to it;
Just start to sing as you tackle the thing
That "cannot be done," and you'll do it.”

maybe it's too pollyanna for you, to glass-half-full. whatever. if you don't like to be optimistic & adventurous, well you can just suck it.