Time
What are we?
Well, for starters, we can say we are human.
We are animals.
We are DNA based organisms.
We are carbon based organisms. A carbon backbone of phosphorus, oxygen, and hydrogen compose our being. Carbon, an element that has four free electron slots and an affinity for hydrogen bonding compose us.
We are stardust. Born from the remains of a star, and into a star we will go. It is wondrous to think that we exist in that brief moment of time between the frozen flame of a plasma kiss and the eternal void of space beyond; the razors edge of life, caught between boiling heat and freezing cold. For one cosmic moment we are just right, too hot to keep our shape, but too cold to boil away. Much like Goldilock's porridge, as a life form, we are... just right. As a species, as a society, as a culture, we suck. Our myriad problems notwithstanding, this cosmic moment is ours. It is up to us to seize the moment, live our lives, our Universe in a moment, and a moment in the Universe.
Carpe diem. Seize the day, for it is yours.