Full Idea
The wise man will commit suicide, for a good reason, both on behalf of his fatherland and on behalf of his friends, and if he should be in very severe pain or is mutilated or has an incurable disease.
Gist of Idea
Suicide is reasonable, for one's country or friends, or because of very bad health
Source
report of Stoic school (fragments/reports [c.200 BCE]) by Diogenes Laertius - Lives of Eminent Philosophers 07.130
A Reaction
Being in a state of despair or depression doesn't seem to figure on the list. Suicide for friends, but not for family?
Book Reference
'The Stoics Reader', ed/tr. Inwood,B/Gerson,L.P. [Hackett 2008], p.124