Peanuts is one of the longest running and most popular comic strips of all time, and its success can be at least partially attributed to the heart inherent in many of the strips. It was pretty common for Charles Schulz's strips to show some intriguing pieces of wisdom. Charlie Brown is likely the most well known for this, both in the comics and television specials. To name an instance, he pointed out the commercialization of Christmas in the seminal 1965 special A Charlie Brown Christmas.
9 "Developing Character" Most kids would go absolutely bonkers if they saw they got everything they wanted for Christmas. Then again, Linus is not like most kids. Instead of feeling joy at his generous array of gifts, he is absolutely heartbroken that he's gotten everything he asked for and is, therefore, incapable of developing character.
In the strip lies the meaningful life lesson that everything is cyclical. Things, good or bad, do not last forever, so it is important to appreciate the good times when they're here and to know that the bad times will pass eventually. Although, the perennially hapless Charlie Brown may be the exception to this.
6 "Frame It" Snoopy can be a bit of a diva when it comes to his food. He absolutely detests coconut candy and will pitch a fit if his dinner is late. One time, he didn't even care that his own owner was in the hospital until he learned that he wouldn't be getting dinner. As a result, Charlie Brown feels the need to tell Snoopy that he should be grateful in this strip.
4 "Hey Stupid Cat" Snoopy is one dog with attitude. He wouldn't have the alter ego Joe Cool without it. However, his sassiness creates problems for him more times than he'd ever like to admit. In this strip, Snoopy yells at the neighborhood cat to take a cruise around the world and to never come back, only for the cat to strike back.
Linus brings up an important piece of advice; that everyone has their ups and downs in life... except Charlie Brown, who has had too many downs. Regardless, the wins and losses that everyone experiences are important to acknowledge because they allow one to be more appreciative of their wins and to remember that when they do experience a slump, that a win is right around the corner. Well, hopefully.