And now it is well that we should note the special trials he had to endure. He had to fight against the spirit of cowardly self-indulgence in others, and he had to fight against the spirit of jobbery. These things indeed caused the rupture in the apostolic friendship. St. Barnabas, apostle though he was, thought far more of the interests of his cousin than of the interests of Christ's mission. St. Paul with his devotion to Christ may have been a little intolerant of the weakness of youth, but he rightly judged that one who had proved untrustworthy before should not be rapidly and at once trusted again. And St. Paul was thoroughly right, and has left a very useful and practical example. Many young men among us are like St. Mark. The St. Marks of our own day are a very numerous class. They have no respect for their engagements. They will undertake work and allow themselves to be calculated upon, and arrangements to be made accordingly. But then comes the stress of action, and their place is found wanting, and the work undertaken by them is found undone. And then they wonder and complain that their lives are unsuccessful, and that men and women who are in earnest will not trust or employ them in the future! These are the men who are the social wrecks in life. They proclaim loudly in streets and highways the hard treatment which they have received. They tell forth their own misery, and speak as if they were the most deserving and at the same time the most ill-treated of men; and yet they are but reaping as they have sown, and their failures and their misfortunes are only the due and fitting rewards of their want of earnestness, diligence, and self-denial. To the young this episode proclaims aloud: Respect your engagements, regard public employments as solemn contracts in God's sight. Take pains with your work. Be willing to endure any trouble for its sake. There is no such thing as genius in ordinary life. Genius has been well defined as an infinite capacity for taking pains. And thus avoid the miserable weakness of St. Mark, who fled from his work because it entailed trouble and self-denial on his part.