Jemma Simmons: I like to think about the first law of thermodynamics. That no energy in the universe is created and…

Fitz-Simmons: None is destroyed.

Jemma Simmons: That means every bit of energy inside us, every particle will go on to be a part of something else. Maybe live as a dragonfish. A microbe. Maybe burn in a supernova 10 billion years from now. And every part of us now was once a part of some other thing. A moon, a storm cloud, a mammoth…

Leo Fitz: A monkey.

Jemma Simmons: A monkey. Thousands and thousands of other beautiful things that were just as terrified to die as we are. We gave them new life. A good one, I hope. It’s fitting we’re down here together, Fitz. This is where all life began. On our planet, anyway.

From Agents of S.H.I.E.L.D. – Season 1 Episode 22: ‘Beginning of the End’ (1×22) | Produced by ABC Studios & Marvel Studios