Brave Heart in Chinese / Japanese...

勇敢的心 is the title “Braveheart,” as in the movie starring Mel Gibson.

The character meanings break down this way:
勇敢 brave.
的 possessive particle.
心 heart/mind.

勇士精神 can be translated as the warrior's spirit or warrior's soul. The first two characters can be translated as “warrior” or literally “brave soldier/man,” although some will translate this word as “hero.” Therefore, this is also how to say “heroic spirit.”

The second two characters mean vigor, vitality, drive, spirit, mind, heart, mental essence, and psychological component. Basically “your soul.”

We have two versions of this phrase. The only difference is the first two and last two characters are swapped. The version here suggests that you admire or like the idea of the spirit of a warrior. The other version suggests that you are the warrior or hero.

精神勇士 can be translated as the spirit or soul of a warrior. The first two characters can be translated as vigor, vitality, drive, spirit, mind, heart, mental essence, and psychological component. Basically, “your soul.”

The second two characters mean “warrior” or literally “brave soldier/man,” although some will translate this word as “hero.” Therefore, this is also how to say “soul of a hero.”

Note: This title is best for Chinese and old Korean. It does make sense in Japanese but is not a common or natural Kanji combination in Japanese.

We have two versions of this phrase. The only difference is the first two and last two characters are swapped. The version here suggests that you are the warrior or hero. The other version suggests that you admire or like the idea of the spirit of a warrior.