Read the excerpt from Pericles’s funeral oration by Thucydides.We make friends by doing good to others, not by receiving good from them. This makes our friendship all the more reliable, since we want to keep alive the gratitude of those who are in our debt by showing continued good-will to them. . . . We are unique in this. When we do kindnesses to others, we do not do them out of any calculations of profit or loss: we do them without afterthought, relying on our free liberality.