William James

1842-1910, American Psychologist, Philosopher

Acceptance
Be willing to have it so; acceptance of what has happened is the first step in overcoming the consequences of any misfortune.

Actualization / Fulfillment
Believe that life is worth living and your belief will create the fact.

Affirmation / Approval
The deepest principle in human nature is the craving to be appreciated.

Attention / Awareness
Everyone is familiar with the phenomenon of feeling more or less alive on different days. Everyone knows on any given day that there are energies slumbering in him which the incitements of the day do not call forth, but which he might display if these were greater … Compared with what we ought to be, we are only half awake.
"The Energies of Men," Essays on Faith and Morals

Our normal waking consciousness, rational consciousness as we call it, is but one special type of consciousness, whilst all about it, parted from it by the filmiest of screens, there lie potential forms of consciousness entirely different. We may go through life without suspecting their existence; but apply the requisite stimulus, and at a touch they are there in all their completeness.
The Varieties of Religious Experience , 1974

Attitude
The greatest discovery of my generation is that human beings, by changing the inner attitudes of their minds, can change the outer aspects of their lives.