The anarchic nature of the international system means that states must rely on self-help to ensure their survival.

The greatest use of life is to spend it for something that will outlast it.

To feel much for others and little for ourselves； to restrain our selfishness and exercise our benevolent affections， constitute the perfection of human nature.

Our frustration is greater when we have much and want more than when we have nothing and want some. We are less dissatisfied when we lack many things than when we seem to lack but one thing.

译文：即使是钝刀，也希望能有一次锋利的机会；梦想着施展抱负，实现宏伟的计划。