Brief Answer:
It’s irrational to believe otherwise. The Law of Non-Contradiction, a fundamental principle in logic, states contradictory claims cannot both be true at the same time and in the same sense.  Therefore, when beliefs contradict each other, only one can be true.

Detailed Answer:

The Truth About Truth: Truth Is Exclusive

Whether it’s comfortable or politically correct to accept or not, the reality is: contradicting beliefs cannot all be true. Only one belief can align with reality when different beliefs conflict. This is based on the law of noncontradiction (LNC), a foundational principle in logic that has never been successfully contradicted.

This law states when two or more things contradict each other, only one, at most, can be accurate. The rest are false.

Real-Life Example

In the 2024 Super Bowl, some people wanted San Francisco to win, others expected Kansas City, and some faithful but sad fans even thought the Detroit Lions had a chance. But in the end, only one team won—the Kansas City Chiefs. This isn’t narrow-minded, intolerant, arrogant, or mean—it’s just reality.

The same principle applies to beliefs about life. At some point, the “game” of life will be over, and the truth will be clear. Can Hinduism, which says we will escape the illusion of life and merge with the Universe, coexist with Islam, where Allah determines our fate? Can Christianity’s belief in salvation through Jesus be true at the same time as Atheism, which claims there’s nothing after death? And what about the idea most people, except the truly evil, will go to heaven? They all contradict each other. By the law of noncontradiction, only one of these can be true.

This isn’t about being narrow-minded, intolerant, or arrogant—it’s just how reality works. Therefore, the all-important question is made clear – what belief system is true?

All People are Created Equal, But Not All Ideas or Beliefs

All people are created equal, and we should treat people with respect. But ideas are not people. Ideas don’t have feelings, and they should be evaluated based on their truthfulness and impact on people’s lives. If an idea aligns with reality, it should be upheld; if it doesn’t, it should be dropped. The tragic events of 9/11 illustrate the importance of discerning between good and harmful ideas, providing a memorable exclamation point to this point.

So, You Think You’re Right, and Everyone Else Is Wrong?

When someone challenges your beliefs with this question, ask them: “Where your beliefs disagree with mine, do you think you’re right?” If they answer “Yes,” they have just proven your point! You can then ask, “Why is it that when I believe I’m right, I’m considered arrogant or intolerant, but when you believe you’re right, you’re not, you’re just right?”

This objection, often raised by atheists or agnostics, is really an emotional argument designed to shut down logical thinking. If atheism or agnosticism were true, even more people worldwide would be wrong, yet those atheist believers don’t get labeled as intolerant.

Truth Isn’t Determined by Popularity

It doesn’t matter how many people disbelieve something—it doesn’t change reality. The entire world could be convinced an atomic bomb wasn’t dropped on Hiroshima, but the fact remains it did happen. Letting emotions guide our thinking, rather than evidence and logic, leads to unreasonable or ignorant decisions and the corresponding bad results following from emotion not leaving room for good judgment.