Fullmetal Alchemist

Fullmetal Alchemist may refer to:
 * Fullmetal Alchemist (manga), a manga series written and illustrated by Hiromu Arakawa
 * Fullmetal Alchemist (anime), an anime adaptation of the manga series that ran from 2003-2004
 * Fullmetal Alchemist: Brotherhood (anime), the second anime adaptation of the manga series
 * Fullmetal Alchemist (film), a live-action adaptation of the manga series

Alphonse Elric (Introduction, episodes 2-41): Humankind cannot gain anything without first giving something in return. To obtain, something of equal value must be lost. That is alchemy's first law of Equivalent Exchange. In those days, we really believed that to be the world's one, and only truth.