Language / Plaque in Polish - Help with polish language [10]

I have a language question...

My wife's family lost their father/husband about 15 years ago. They have never honoured or done anything to remember him mostly because they can't afford it. They want to and I want it for them. He was taken suddenly. I have been left some money from a death in my family. I will use some to honour their father and husband and to do something positive with The money that was left for me to help honour both.

I'm planning on making a donation to my city for a memorial plaque at the base of a tree. The passed father and survived wife are from Poland and came to Canada in The 80's. Their children were born here (one being my wife). They live a polish culture life style and well as Canadian but mostly speak polish to each other. I am not polish nor do I speak the language.

I want to surprise them with this which is why I can't ask them for help.

I want to have English and polish on the plaque. I will obvious take care of the English wording but I need help with the polish.

What would be a nice statement/saying/line to place on this plaque in polish? They are Roman Catholic but the saying doesn't have to be religious.

Any suggestions would be appreciated.

Thank you.