Themes
There is in the worst of fortune the best of chances for a happy change.
— Euripides • Iphigenia in Tauris

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Bad fortune is presented as a setting in which improvement remains possible. The contrast between worst and best gives the statement its hopeful force. It speaks about a chance for change, leaving a distinction between recognizing an opening and knowing that a happier outcome will follow.
Context reviewed