11 Let, then, grief be patient, let there be that moderation in adversity which is required in prosperity. If it be not seemly to rejoice immoderately, is it seemly so to mourn? For want of moderation in grief or fear of death is no small evil. How many has it driven to the halter, in how many hands has it placed the sword, that they might by that very means demonstrate their madness in not enduring death, and yet seeking it; in adopting that as a remedy which they flee from as an evil. And because they were unable to endure and to suffer what is in agreement with their nature, they fall into that which is contrary to their desire, being separated for ever from those whom they desired to follow. But this is not common, since nature herself restrains although madness drives men on.
Source: On the Death of Satyrus (New Advent)