Mindness

Let us define mental health as the adjustment of human beings to the world and to each other with a maximim of effectiveness and happiness. Not just efficiency, or just contentment-or the grace of obeying the rules of the game cheerfully. It is all of these together. It is the ability to maintaian an even temper, an alert intelligence, socially considerate behaviour, and a happy disposition. This, I think, is a healthy mind.

Karl A. Menninger "The Human Mind" 1937