Capt. Malcolm Reynolds: But it ain't all buttons and charts, little albatross. You know what the first rule of flyin' is? Well I suppose you do, since you already know what I'm about to say.
River Tam: I do. But I like to hear you say it.
Capt. Malcolm Reynolds: Love. You can know all the math in the 'Verse, but take a boat in the air you don't love, she'll shake you off just as sure as the turning of worlds. Love keeps her in the air when she oughta fall down, tells ya she's hurtin' 'fore she keens. Makes her home.
River Tam: Storm's getting worse.
Capt. Malcolm Reynolds: We'll pass through it soon enough.
Consider the idea of spontaneous genesis of life, as used to be belived. What strange kinds of life might arise from modern substances? What kind of vermin would a landfill produce, or an oil spill on the ocean?