Temporary madness may be necessary in some

Temporary madness may be necessary in some cases, to cleanse and renovate the mind; just as a fit of illness is to carry off the humours of the body.  ~Augustus William Hare and Julius Charles Hare, Guesses at Truth, by Two Brothers, 1827

The statistics on sanity are that one

The statistics on sanity are that one out of every four Americans is suffering from some form of mental illness.  Think of your three best friends.  If they’re okay, then it’s you.  ~Rita Mae Brown

A man who is 34of sound mind34

A man who is "of sound mind" is one who keeps the inner madman under lock and key.  ~Paul Valéry, Mauvaises pensées et autres, 1942MBT, p140

No man is sane who does not

In things pertaining to enthusiasm, No man is sane who does not know how to be insane on proper occasions.  ~Henry Ward Beecher

Insanity is often the logic of an

Insanity is often the logic of an accurate mind overtasked.  ~Oliver W. Holmes, Sr., The Autocrat of the Breakfast-Table, 1858PMB, p150