Quick Answer. Voltaire wrote Candide as a satire of the then-prevalent philosophical optimism advanced by Gottfried Wilhelm Leibniz. Voltaire, moved by contemporary events like the Seven Years' War and the 1755 Lisbon earthquake, felt that optimism was a naive way of viewing the world.
Neurons carry impulses from one place to another, around the many parts of the nervous system. They connect receptors to the central nervous system and also connect one part of the nervous system to another, for example in the brain and spinal cord.
Report Abuse. A Nerve electrical impulse only travels in one direction. There are a few reasons why nerve impulses only travel in one direction, the most important being synaptic transport.In order for a depolarization wave, or nerve impulse to pass from cell to cell, there are what we call synaptic junctions.eport Abuse. A Nerve electrical impulse only travels in one direction. There are a few reasons why nerve impulses only travel in one direction, the most important being synaptic transport.