It is an intolerable crime to break a legal contract which one has made voluntarily without duress or pressure, and with full understanding of its terms, conditions, and consequences, unless an unforeseen change in circumstances renders the contract’s terms destructive, absurd, or cruel, in which case a settlement must be found which is as fair as possible to all parties who have acted in good faith throughout.
This is a much higher weight on contract than the common law legal systems have -- all sorts of things are unenforceable blessings without being destructive, absurd, or cruel -- penalty clauses, for instance, are unenforceable.