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

No further evidence is needed to show that 'mental illness' is not the name of a biological condition whose nature awaits to be elucidated, but is the name of a concept whose purpose is to obscure the obvious.
Thomas Szasz

Not that I wish by any means to deny, that the mental life of individuals and peoples is also in conformity with law, as is the object of philosophical, philological, historical, moral, and social sciences to establish.
Hermann von Helmholtz

Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude.
Thomas Jefferson

Nothing irritates me more than chronic laziness in others. Mind you, it's only mental sloth I object to. Physical sloth can be heavenly.
Elizabeth Hurley

Nowhere more truly than in his mental capacities is man a part of nature.
Edward Thorndike

Often, even after years, mental states once present in consciousness return to it with apparent spontaneity and without any act of the will; that is, they are reproduced involuntarily.
Hermann Ebbinghaus

Old age is a special problem for me because I've never been able to shed the mental image I have of myself - a lad of about 19.
E. B. White

On the other hand, ethnic psychology must always come to the assistance of individual psychology, when the developmental forms of the complex mental processes are in question.
Wilhelm Wundt

One hearty laugh together will bring enemies into a closer communion of heart than hours spent on both sides in inward wrestling with the mental demon of uncharitable feeling.
William James

One in six people suffer depression or a chronic anxiety disorder. These are not the worried well but those in severe mental pain with conditions crippling enough to prevent them living normal lives.
Polly Toynbee

One often forms a mental image of an artist through his work and is often disappointed on meeting him.
Alun Hoddinott

Physiological psychology, on the other hand, is competent to investigate the relations that hold between the processes of the physical and those of the mental life.
Wilhelm Wundt

Pictures help you to form the mental mold.
Robert Collier

Proverbs are mental gems gathered in the diamond fields of the mind.
William R. Alger

Psychoanalysis is that mental illness for which it regards itself as therapy.
Karl Kraus

Psychology is the science of the act of experiencing, and deals with the whole system of such acts as they make up mental life.
Samuel Alexander

Reading Stephen King's book, On Writing, was like being cornered and forced to have a long, drawn out mental enema.
Mary Garden

Reality is never as bad as a nightmare, as the mental tortures we inflict on ourselves.
Sammy Davis, Jr.

Regardless of how you feel inside, always try to look like a winner. Even if you are behind, a sustained look of control and confidence can give you a mental edge that results in victory.
Diane Arbus