You retire when you are sick ...

You retire when you are sick and when you can't do it any more or when the public retires you. That's the most painful, because that's the one that leaves you wanting to accomplish more.
 Julio Iglesias

Quotes from the same author

We're excited to be appearing in Tel Aviv in the framework of the Pic.nic festival. This is an important tour for us and we're glad that Israel is part of it
 Julio Iglesias