Love is a serious mental disease.
Plato

Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.
John Dewey

Many soldiers returning from Iraq and Afghanistan suffer from serious, long-term, physical and mental health problems, due to their service. It is unconscionable to cut the already limited health care benefits available to these brave men and women.
Mark Dayton

Many years ago, I concluded that a few hair shirts were part of the mental wardrobe of every man. The president differs from other men in that he has a more extensive wardrobe.
Herbert Hoover

Men should not try to overstrain their goodness more than any other faculty, bodily or mental.
Samuel Butler

Mental agitations and eating cares are more injurious to health, and destructive of life, than is commonly imagined, and could their effects be collected, would make no inconsiderable figure in the bills of mortality.
William Falconer

Mental attitude and concentration are the keys to pitching.
Ferguson Jenkins

Mental communication without verbalization... all space is made up of waves and we are constantly sending and receiving messages from our brain.
Tina Louise

Mental events, it is said, are not passive happenings but the acts of a subject.
Hermann Ebbinghaus

Mental fight means thinking against the current, not with it. It is our business to puncture gas bags and discover the seeds of truth.
Virginia Woolf

Mental life is indeed practical through and through. It begins in practice and it ends in practice.
Samuel Alexander

Mental states of every kind, - sensations, feelings, ideas, - which were at one time present in consciousness and then have disappeared from it, have not with their disappearance absolutely ceased to exist.
Hermann Ebbinghaus

Mental toughness is to physical as four is to one.
Bobby Knight

Most people miss the great part mental outlook plays in this game.
Billy Martin

My mental approach is totally different. My coach predicated everything on defense. He always talked about defense, defense, defense. I took it to heart that if you play defense, you can take the heart from an offensive player.
Eric Williams

My mental faculties remained in suspended animation while I obeyed the orders of the higher-ups. This is typical with everyone in the military.
Smedley Butler

My mind rebels at stagnation. Give me problems, give me work, give me the most abstruse cryptogram, or the most intricate analysis, and I am in my own proper atmosphere. But I abhor the dull routine of existence. I crave for mental exaltation.
Arthur Conan Doyle

Myth is an attempt to narrate a whole human experience, of which the purpose is too deep, going too deep in the blood and soul, for mental explanation or description.
David Herbert Lawrence

Narcissist: psychoanalytic term for the person who loves himself more than his analyst; considered to be the manifestation of a dire mental disease whose successful treatment depends on the patient learning to love the analyst more and himself less.
Thomas Szasz

Ninety percent of my game is mental. It's my concentration that has gotten me this far.
Chris Evert