Again, the true ruler, in some ways, is one, Thrasymachus who has the courage to act unjustly for his own interest.

Rebus sic stantibus is a legal concept with a long history.

情事变更原则是一项历史悠久的法律制度。

Our Country Should Establish The Principle Of Change Of Situation

我国应确立情事变更原则

The essence of this principle is to defend the freedom of contract.

情事变更原则的本质是维护合同自由。

Comment on the Principle of Change of Situations

情事变更原则之刍议

Legislative& Judicial Problems Confronting Uniform Contract Law

情事变更原则：统一合同法面临的立法与司法问题

The United Kingdom and the United States established the frustration.

英国和美国都确立了情事变更原则。

The Theory of Change of Circumstance and its Application

情事变更原则的理论与适用

The final reason to frustration in the legislation of our country.

最后理性地提出了情事变更原则在我国的立法构想。

France has not been confirmed in law in frustration.

法国还没有在法律中确认情事变更原则。

The content of the aforementioned statements shall not contain false statements or concealments.

前项书表之内容，不得有虚伪或隐匿之情事。

And then explains the legal effect of change of situation.

然后阐述了情事变更的法律效力。

One is "circumstances" is different from force majeure, business risk.

情事不同于不可抗力、商业风险。

Analysis of the Existent Necessity of Circumstance Modification Principle

情事变更原则存在之必要性浅析

We must discuss on the applicable conditions with the latest laws.

关于情事变更原则的适用条件，要结合最新的法律法规来归纳总结。

On the "Change of Circumstances" Principle in the Contract Law

谈合同法中的情事变更原则

My uncle's had like three affairs there.

我叔叔在那里有过三段情事。

The changes of circumstances were not caused by the action of the parties.

情事变更必须不可归责于当事人的事由。

On the Necessity and Feasibility of Circumstances Change System Being Established in Contract Law

论合同法确立情事变更制度的必要性和可行性

Another thing that happens is that once a dog understands the concept of marking with "YES" he thinks he has trained you to become his personal treat dispenser.

一旦狗儿明白了“YES”作为正面标记的含义，就会发生另一件情事：狗儿会认为它正在训练你变成它个人的奖励管理者。

The Principle of Changed Circumstances and Termination of Contract

论情事变更原则与合同解除