Flux is a form of flow, but with one crucial difference. ...In biochemistry flux is the flow of things that are transformed along the way. - Nick Lane

Different species have transferred different genes to the nucleus, but all species with mitochondria have... retained... the same core contingent of mitochondrial genes.

The only way that you can really get a selfish replicator to be unselfish is to put it in a bag with a bunch of other selfish replicators, and then they're more or less obliged to cooperate.

The possessors of... nuclei, the s, are the most important cells in the world. ...[A]ll plants and animals, all and fungi... essentially everything we can see with the naked eye, is composed of [them]...