What are some funny and smart quotes?

My sister Tracy sent me these a little while ago. I thought I’d share them. Thanks Trace.

“Everyone in the Swiss Army owns a Swiss Army knife. That’s why no one messes with Switzerland.”

“A Freudian slip is when you say one thing when you’re really thinking about a mother.”

What is the funniest joke you've been told that you still think about to this day?

They did a study between postal workers and chimpanze...

“There is no rule against postal workers dating women. It just works out that way.”

Few people had funnier or smarter quotes than Cliff Clavin from the TV show, Cheers.

Why would the state lie about the Earth's shape? We know that it's flat, but why do they lie and tell us that it is a sphere?

“It’s a little known fact that the tan became popular in the Bronze Age.”

“Ah just like all women. If they’re not turning down your proposal of marriage, they”re accusing you of suspicious behavior in the lingerie changing room.”

“The human brain can only operate as fast as its slowest brain cells. Too much alcohol kills brain cells, especially the slower, weaker ones. So, regular consumption of beer eliminates the slower brain cells after you’ve had a few beers which will speed up your brain.”

Are landlords allowed to make unreasonable requests?

“It’s a little known fact that pigs are the smartest animal. Scientists say that if pigs had thumbs and a language that they could be trained to do manual labor. They give you 20 to 30 years of loyal service and then at their retirement dinner, you can eat them.”