Put on the brakes and prepare yourself for some backtracking as this eclipse sends a signal that you need to exercise self-restraint.

刹车，准备好原路返回，因为这次月食显示你需要自我克制。

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By doing so, the Philippines has seriously violated its own commitment made under the DOC to exercise self-restraint in the conduct of activities that would complicate or escalate disputes.

菲律宾的侵权行为严重违背了其在《宣言》中关于保持自我克制，不采取使争议复杂化、扩大化行动的承诺。

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The parties involved should exercise (self -) restraint and prevent the situation from getting worse.

有关各方应采取克制态度，防止事态扩大。

《新英汉大辞典》

Or can something be done to restrain companies, or at least to get them to exercise self-restraint?

ECONOMIST: What role should corporate citizens play in politics?

The key question is whether the Brotherhood will continue to exercise self-restraint when the Mubarak regime falls.

CNN: The Sweep: The risk of democracy in the Middle East

The failure of banks to self-regulate on bonuses, or to exercise restraint, has now resulted in a bonus cap with a one-to-one salary-to-bonus ratio, which aims to put an end to the excessive risk culture which lead to taxpayer bail-outs and bank collapses.

BBC: Viewpoints: EU banker bonus cap