Something to help when things don't go as planned

I always loved the saying "When the Lord closes a door somewhere he opens a window."  Even if you don't believe in God I think it's just nice to hold on to the idea that when things don't go so well it means that something better is coming and it's just a matter of holding on until the "better" comes along. I believe that good things always come in the end, they might not come in the way I've expected them to but they've always arrived in one form or another and have given me strength. I don't think one has to be a bodybuilder to be strong, we just have to hold on and carry on!