I never knew you, Christopher Okigbo, / I saw you when an actor screamed The tribes! / The Tribes! I catch / the guttering, flare-lit / faces of Ibos, / stuttering, bug-eyed / prisoners of some drumhead tribunal.

May the day when we become the second people upon earth […] be the day of our utter extirpation!

These points will be padlocked, a green hand-signal will be shown and the keys handed to the pilotman, who will be expected to make a periodical examination of the points to see that they are secure and that the hand-signal is still properly displayed.

A uniformly continuous function is a function whose derivative is bounded.