15 But why do you think that she who has sent her beloved to foreign parts, and because of military service, or of undertaking some office, or has discovered that for the purpose of commerce he has crossed the sea, ought to be more patient than thou who art left, not because of some chance decision or desire of money, but by the law of nature? But, you say, the hope of regaining him is shut out. As though the return of any one were certain! And oftentimes doubt wearies the mind more where the fear of danger is strong; and it is more burdensome to fear lest something should happen than to bear what one already knows has happened. For the one increases the amount of fear, the other looks forward to the end of its grief.
Source: On the Death of Satyrus (New Advent)