Shestov's Abraham can be seen as one underconcerned with necessity, leaping forward blindly into possibility.

Shepard: Mordin, walk away. Mordin: Can't do that, Shepard. Shepard: I don't have a choice here. Walk away, or I will fire.

I looked out the window and tried to see over the pink rhododendrons and down the block. […] I couldn’t see a thing but a tangle of leathery rhody leaves, and over that, two neighbors standing on the sidewalk talking.

Algebraic cycles are typically studied by imposing one of several equivalence relations. The equivalence relation most relevant for algebraic K-theory is rational equivalence.