They say that nothing is permanent in today's world. But they're wrong. Things come and go, you witness ups and downs, relationships begin and end, but there is one thing that stays just the same: our old friends. They've seen us transform from bratty kids to grown up professionals and even if we don't meet them often, they make our lives better just by being a part of it. But very often, we get too busy or are just plain lazy, and end up losing touch with them. However, it's never too late to pick up the phone and make a plan. Here are 11 reasons that will make you call your old friends:

They know you inside out.

When they are around, you don't have to pretend to be someone you're not because they know you best.

And still don't judge you.

They've seen you transform from who you were to who you are now and don't judge you one bit because they were as stupid as you.