Sword in the Stone lyrics

Set your sights
Upon the heights
Don't be a mediocrity;
Don't just wait
And trust to fate
And say that's how it's meant to be.
It's up to you how far you go;
If you don't try, you'll never know,
And so my lad, as I've explained,
Nothing ventured, nothing gained.

-Richard M. Sherman and Robert B. Sherman