22. But most people unreasonably, not to speak of modesty, want such a friend as they are unable to be themselves, and expect from their friends what they do not themselves give. The fair course is first to be good yourself, and then to look out for another of like character. It is between such that the stability in friendship of which we have been talking can be secured; when, that is to say, men who are united by affection learn, first of all, to rule those passions which enslave others, and in the next place to take delight in fair and equitable conduct, to bear each other's burdens, never to ask each other for anything inconsistent with virtue and rectitude, and not only to serve and love but also to respect each other. I say "respect"; for if respect is gone, friendship has lost its brightest jewel. And this shows the mistake of those who imagine that friendship gives a privilege to licentiousness and sin. Nature has given us friendship as the handmaid of virtue, not as a partner in guilt: to the end that virtue, being powerless when isolated to reach the highest objects, might succeed in doing so in union and partnership with another. Those who enjoy in the present, or have enjoyed in the past, or are destined to enjoy in the future such a partnership as this, must be considered to have secured the most excellent and auspicious combination for reaching nature's highest good. This is the partnership, I say, which combines moral rectitude, fame, peace of mind, serenity: all that men think desirable because with them life is happy, but without them cannot be so. This being our best and highest object, we must, if we desire to attain it, devote ourselves to virtue; for without virtue we can obtain neither friendship nor anything else desirable. In fact, if virtue be neglected, those who imagine themselves to possess friends will find out their error as soon as some grave disaster forces them to make trial of them. Wherefore, I must again and again repeat, you must satisfy your judgment before engaging your affections: not love first and judge afterwards. We suffer from carelessness in many of our undertakings: in none more than in selecting and cultivating our friends. We put the cart before the horse, and shut the stable door when the steed is stolen, in defiance of the old proverb. For, having mutually involved ourselves in a long-standing intimacy or by actual obligations, all on a sudden some cause of offence arises and we break off our friendships in full career.