When one door to happiness closes, another opens. But often we look so long at the closed door we do not see the one which has been opened to us.
When one door of happiness closes, another opens; but often we look so long at the closed door that we do not see the one which has opened for us
When one door closes, another opens. But we often look so regretfully upon the closed door that we don't see the one that has opened for us.