[final lines of the series] There’s no such thing as a painless lesson. They just don’t exist. Sacrifices are necessary. You can’t gain anything without losing something first although if you can endure that pain and walk away from it, you’ll find that you now have a heart strong enough to overcome any obstacle. Yeah, a heart made fullmetal.
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S1 E15Unfinished Business
These quotes come from Wikiquote's Fullmetal Alchemist: Brotherhood pages and are available under the Creative Commons Attribution-ShareAlike License.