We must listen to the science, even when it challenges our traditional methods.
To signal an emergency， use the rule of three； 3 shouts， 3 horn blasts， or 3 whistles.
States are rational actors that seek to maximize their power and security in an anarchic international system.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'