stuck on this code

FYI: Next time when you're trying to post code, be sure to wrap it with 3 backticks ( The ` character. It's on the same key as the ~ on most keyboards), and write the language your code is in right after the first 3 backticks, without any spaces. I fixed it for you now, but you can refer to the Markdown Cheatsheet (right under the box where you type a reply) if you have any questions.

Anyway, I see 2 things wrong with your code, both are syntax errors. The first is with your import statement. You wrote it simply as import "Quote.h", but the proper syntax is to put an octothorp right before the word "import", so it looks like this:

#import "Quote.h"

The second thing I see wrong is that you didn't put any character to indicate whether your 2 methods are class or instance methods. This is declared by putting a + or a - at the very beginning of the definition. A - indicates that the method is an instance method, which means that it can only be called on an instance of your class that has already been initialized. This is the most common kind of method. A class method is indicated with a +, and can be called without an initialized instance of your class having already been created. These are really common when you're writing convenience initializers. If memory serves, both of these should be instance methods, so they should both look like this (with a little unnecessary prettification to my personal preferences):

-(NSArray *) quotes { 
    if (_quotes == nil) {
          _quotes = [[NSArray alloc] initWithObjects:@"1",@"2",@"3", nil];
    } return _quotes;
}

-(NSString *) randomQuote {
    return @"Some Quote"; 
}

The entirety of the fixed code should look like this:

#import "Quote.h"

@implementation Quote

-(NSArray *) quotes { 
    if (_quotes == nil) {
          _quotes = [[NSArray alloc] initWithObjects:@"1",@"2",@"3", nil];
    } return _quotes;
}

-(NSString *) randomQuote {
    return @"Some Quote"; 
}

@end