A youth is at all times sure to find silence a credit to him; but in one case it is especially so—when he can listen to another without becoming excited and continually yelping; when, even [Sidenote: C] if what is being said is little to his liking, he waits patiently for the speaker to finish; when, at the close, he does not immediately come to the attack with his contradiction, but (to quote Aeschines) waits a while, in case the speaker might wish to supplement his remarks, or perhaps to adjust or qualify his position. To take instant objection, neither party listening to the other but both talking at once, is an unseemly performance. On the other hand, those who have been trained to listen with modest self-control will accept a valuable argument and make it their own, while they will be in a better position to see through a worthless or false one and to expose it, thereby [Sidenote: D] showing that they are lovers of truth, and not merely contentious, headstrong, or quarrelsome persons. It is therefore not a bad remark of some, that there is more need to expel the wind of vanity and self-conceit from the young, than to expel the air from a skin, when you wish to pour in anything of value: otherwise they are too swollen and flatulent to receive it. The presence of envious and malicious jealousy is, of course, never to good purpose, but always an impediment to proper action. In the case of a student at lectures it is the most perverse of prompters. Words which ought to do him good are rendered vexing, distasteful, and unwelcome by the fact that there is nothing which an envious man likes so little as an [Sidenote: E] excellent piece of reasoning. And note that, when a man is piqued by fame or beauty belonging to others, he is envious and nothing more; what annoys him is another’s good fortune. But when he is irritated by admirable argument, his vexation is at his own good, since reason—if he has a mind to accept it—is as much to the good of one who hears as light is to the good of one who sees.