艺术应该是危险的——它应该让你有所感受。

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

相位裕度是系统在变得不稳定之前可以容忍的程度的度量。

我总是被那些复杂且有深度的角色所吸引。