Correct conduct under stress is more likely when one has correct expectations about life.

To err by having naive expectations concerning the purposes of life is to err everlastingly. Life is neither a pleasure palace through whose narrow portals we pass briefly, laughingly, and heedlessly before extinction, nor is life a cruel predicament in an immense and sad wasteland. It is the middle (but briefest) estate of the three estates in man's carefully constructed continuum of experience.