I’m not Sure

I am an untapped well,
I live by virtue, if virtue is in me,
A harlequin to the sensible,
Like machines computing schedules at will,
I fall the most, but I can jump the highest,
Paradox, I am, but with cause, if realized,
Innocent, I am not though I dress like a child,
Feed me, I will NOT be content,
I crave attention but only at pivotal moments,
Where are my brothers?
I cannot find one. Are they all lost?
Good that they be alone, so not to waste time,
It would be more than scary, unnerving, for me to be in my own kind.