He too championed the anti-apartheid cause, paid his dues, had his works banned.

Nothing less than the relation between you and me can possibly authorize that freedom; but fortunately for you, my parental rights, joined to my censorial powers, give it me in its fullest extent, and my concern for you will make me exert it.

The second chapter (by David Smith) describes the primary endosymbiosis as an introduction for secondary endosymbioses. He illustrates the origin of primary endosymbiosis, plastid genome evolution, and loss of photosynthesis in some lineages of Archaeplastida.

to navigate around the horn