To grieve for evils is often wrong; but it is much more wrong to grieve without them. All sorrow that lasts longer than its cause is morbid, and should be shaken off as an attack of melancholy, as the forerunner of a greater evil than poverty or pain.
Samuel JohnsonWhen any fit of gloominess, or perversion of mind, lays hold upon you, make it a rule not to publish it by complaints, but exert your whole care to hide it; by endeavouring to hide it; you will dry it away. Be always busy.
Samuel Johnson