PresidentJimmy Carterand his wifeRosalynn Carterare often celebrated for being the longest married presidential couple.

These two tied the knot on July 7, 1946, after dating for two years.

President Carter later explained to Oprah Winfrey that he knew he would marry Rosalynn after their first date.

Jimmy Carter and Rosalynn Carter at an event together

“I knew that she was quiet, she was extremely intelligent … beautiful.

There was just something about her that was irresistible” (viaYouTube).

In the bookWhat Makes a Marriage Last, President Carter goes into a little more detail.

President Carter and his wife Rosalynn Carter

“I just felt compatible with her.

She was beautiful and innocent, and there was a resonance.

I remember that vividly” (viaPeople).

For her, a lot of it comes down to being able to give one another their own space.

In a 2013 interview withParade, Rosalynn was asked what the secret to her 67-year marriage is.

She replied that respect goes a long, long way.

“I think space.

It all developed when we had the farm supply business and I was keeping the books.

It wasn’t long before I knew more about the business than he did.

So I could give him advice.

We learned to respect each other.

In 2014, Rosalynn Carter again spoke about their marriage, sharing that President Carter really believes in her.

“One nice thing about him is he thinks I can do anything.