AMartian having need of a few minutes or years of contemplation simply took it.  If another Martian wished to speak with him, this friend would simply wait, as long as necessary.  With all eternity to draw on there could be no reason for hurrying - in fact "hurry" was not a concept that could be symbolized in the Martian language and therefore must be presumed to be unthinkable.  Speed, velocity, simultaneity, acceleration, and other mathematical abstractions having to do with the pattern of eternity were part of Martian mathematics, but not of Martian emotion, contrariwise, the unceasing rush and turmoil of human existence came not from mathematical necessities of time but from the frantic urgency implicit in human sexual bipolarity.