“The needs of man, if life is to survive, are usually said to be four -- air, water, food, and in the severe climates, protection. But it is becoming clear today that the human organism has another absolute necessity… This fifth need is the need for novelty -- the need, throughout our waking life, for continuous variety in the external stimulation of our eyes, ears, sense organs, and all our nervous network.”

Art History And Class Struggle (1978)

Source: UnDivided

Price Statement on March for Life https://www.lifesitenews.com/news/trumps-new-hhs-secretary-there-is-nothing-more-fundamental-to-our-humanity (January 24, 2011)

Source: What On Earth Is About To Happen… For Heaven’s Sake? (2013), p. 56

Existencilism (2002)

Source: Letter to his daughter (1978), p. 28
Context: We badly need to gather our thoughts and clear our minds. We need a political ceasefire without conceding ideological territory. We need a ceasefire to bury dead thoughts and to overcome fatigue. The modus vivendi has to be honourable and above board. Both sides have lost or, should I say, neither side can win. During the ceasefire a combination of existing forces might create a new order or a new equation between existing forces. Whatever the formula, it cannot be evolved on the battlefield of the old or new cold wars. The new international order has to emerge through the demands of a Third World summit conference. The answer to the North-South conflict, which is more serious than the East-West conflict, has to be found honestly and with unimpeachable integrity. Genuine disarmament will not come on its own or by platitudes at special sessions of the United Nations on disarmament, although, I was among the first to propose such a conference eighteen years ago.

"Self-Culture", an address in Boston (September 1838) http://www.americanunitarian.org/selfculture.htm
Context: I have insisted on our own activity as essential to our progress; but we were not made to live or advance alone. Society is as needful to us as air or food. A child doomed to utter loneliness, growing up without sight or sound of human beings, would not put forth equal power with many brutes; and a man, never brought into contact with minds superior to his own, will probably run one and the same dull round of thought and action to the end of llfe.
It is chiefly through books that we enjoy intercourse with superior minds, and these invaluable means of communication are in the reach of all. In the best books great men talk to us, give us their most precious thoughts, and pour their souls into ours. God be thanked for books. They are the voices of the distant and the dead, and make us heirs of the spiritual life of past ages. Books are true levelers. They give to all, who will faithfully use them, the society, the spiritual presence, of the best and greatest of our race.