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.
1 Transmit nerve impulses: Nerves are able to transmit impulses along the length of the nerve cell in the form of an electrical signal (like power lines). 2  These electrical signals move from one end of the nerve cell to another and can pass from nerve to nerve (power pole to power pole). Receive signals: Nerves receive signals because they are irritable, meaning that they can respond to a stimulus. 2  Once a stimulus is received by a nerve cell it converts it to a neural impulse which passes along the nerve.