Category Pages Display only Title and thumb

Hi, I’m using a child theme of twenty fourteen. In my menu, “Quotes” is a category page. I want to display only the title and the image from inside the post. I found code for displaying the title only but I can’t figure out how to add the posts image.

The child theme is using a content-titles.php to accomplish showing the title only… but is there a way to code it to also show the image inside the post?

<?php
/**
 * The custom content archive template for displaying entry titles only on archive pages
 * @author    Brad Dalton
 * @example   https://wpsites.net/web-design/twenty-fourteen-theme-show-only-post-titles-on-archive-pages/
 * @copyright 2014 WP Sites
 * @subpackage Twenty_Fourteen
 */
?>

<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

	<header class="entry-header">

		<?php	if ( is_single() ) :
				the_title( '<h1 class="entry-title">', '</h1>' ); 
			else :
				the_title( '<h1 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h1>' );
			endif;
		?>

		</header><!-- .entry-header -->
		
		<?php
			wp_link_pages( array(
				'before'      => '<div class="page-links"><span class="page-links-title">' . __( 'Pages:', 'twentyfourteen' ) . '</span>',
				'after'       => '</div>',
				'link_before' => '<span>',
				'link_after'  => '</span>',
			) );
		?>
	

</article><!-- #post-## -->

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