Don Quixote
Someone who is idealistic, and believes in justice, and is on a quest to save the world or someone, no matter how absurd the reality of accomplishing it is.
Example:
Eric was a Don Quixote when he thought he could save Gina from drugs. She's been hooked on crack for over a decade, and still hangs around dopeboys. He is out of his head on a lost cause.
Eric was a Don Quixote when he thought he could save Gina from drugs. She's been hooked on crack for over a decade, and still hangs around dopeboys. He is out of his head on a lost cause.