Two temperament apart

The world is entirely of hot and cold,
Some say hot is the best,
While some say cold is the best.

Humanity admires hot etiquette,
Well known for their vexation,
Chock fulled with warmness.

Ones turned cold- blooded,
Possibly went through a lot,
Possibly loved someone from the bottom of the heart,
Shattered the pieces of the heart.

As far from my point,
The universe is partially hot,
Yet turning into cold won't make much time.