There are four more or less distinct methods of avigating, all of which are somewhat interrelated. These comprise: Piloting, Radio Avigation, Dead Reckoning, and Celestial Avigation.

She deemed his efforts insufficient.

You jolly well deserved it.

[…] But we offer you equality: at least equality in slavedom; if you are to be slaves, at least you can be slaves to your own color and race and religion.