27. It doesn’t have to be perfect for it to be wonderful.

A note under the pillow, a surprise bouquet, a peck on the cheek. Romance never goes out of style.

Scoreboards are for sports games, not marriages.

This is part of the fundamental balance and tension of life. The joy of love comes in the same package as the pain of loss.

When facing a challenge, face it together.

Marriage should not be the end of individuality.

Sometimes it will be 90/10, sometimes it will be 10/90. All that matters is that it adds up to 100.

We can always use more love.

Minor issues become major issues over time. Furthermore, most minor issues that persist or repeat are a result of a more fundamental issue with the foundation. Address those swiftly, as they won't repair themselves.

Stubborn pride is the downfall of relationships.

If there's something bothering you, ask whether it will matter in one month. If not, let it go right now.

Create ripples that last.

Someday you’ll find the other side of the bed empty and wish you could.

Don't delay difficult conversations.

The mutual desire for improvement is what builds a lifelong bond.

It's a simple reminder of your love that goes a long way.

Remember that when the two feel in conflict.

Nothing good has ever come from shouting.

If you are struggling to apologize, go for a short walk, breathe, and try again. It's (almost) always worth it.

Allow each other the space to lead within different domains in your relationship.

Make a list of your daily needs to feel good. Make sure you and your partner are able to accomplish that list.

Forget the approval of others. You won't be able to make everyone happy. Accept that and embrace each other.

Laughing together goes a long way to smooth the inevitable bumps in the road.

I'm 99 and still courting my wife! Marriages don't get boring, you stop trying.

Take out the trash, refill the soap dispenser, put away the toys. Tiny acts of love and respect add up over time.

Know that your love will be tested, but that each test has the potential to leave it stronger.

The participants ranged from a mid-60s couple who had just celebrated their 40th anniversary to a 99-year-old who had just celebrated 66 years of happiness with his bride.

In total, the advice captured 500+ years of earned wisdom from these beautiful relationships. Here's ...