“I believe in the salvation of humanity, in the future of cyanide...”

Japan, the Beautiful and Myself (1969)
Context: "If you meet a Buddha, kill him. If you meet a patriarch of the law, kill him."
This is a well-known Zen motto. If Buddhism is divided generally into the sects that believe in salvation by faith and those that believe in salvation by one's own efforts, then of course there must be such violent utterances in Zen, which insists upon salvation by one's own efforts. On the other side, the side of salvation by faith, Shinran, the founder of the Shin sect, once said: "The good shall be reborn in paradise, and how much more shall it be so with the bad." This view of things has something in common with Ikkyu's world of the Buddha and world of the devil, and yet at heart the two have their different inclinations. Shinran also said: "I shall not take a single disciple."
"If you meet a Buddha, kill him. If you meet a patriarch of the law, kill him." "I shall not take a single disciple." In these two statements, perhaps, is the rigorous fate of art.

Credo (1901)
Context: I believe in the Motherhood of God.
I believe in the Blessed Trinity of Father, Mother and Child.
I believe that God is here, and that we are as near Him now as ever we shall be.
I do not believe He started this world a-going and went away and left it to run by itself.
I believe in the sacredness of the human body, this transient dwelling place of a living soul, And so I deem it the duty of every man and every woman to keep his or her body beautiful through right thinking and right living.
I believe that the love of man for woman, and the love of woman for man is holy; And that this love in all its promptings is as much an emanation of the Divine Spirit as man's love for God, or the most daring hazards of the human mind.
I believe in salvation through economic, social, and spiritual freedom.
I believe John Ruskin, William Morris, Henry Thoreau, Walt Whitman, and Leo Tolstoy to be Prophets of God, who should rank in mental reach and spiritual insight with Elijah, Hosea, Ezekiel, and Isaiah.
I believe that men are inspired to-day as much as ever men were.
I believe we are now living in Eternity as much as ever we shall.
I believe that the best way to prepare for a Future Life is to be kind, live one day at a time, and do the work you can do best, doing it as well as you can.
I believe we should remember the Week-day, to keep it holy.
I believe there is no devil but fear.
I believe that no one can harm you but yourself.
I believe in my own divinity — and yours.
I believe that we are all sons of God, and it doth not yet appear what we shall be.
I believe the only way we can reach the Kingdom of Heaven is to have the Kingdom of Heaven in our hearts.
I believe in every man minding his own business.
I believe in sunshine, fresh air, friendship, calm sleep, beautiful thoughts.
I believe in the paradox of success through failure.
I believe in the purifying process of sorrow, and I believe that death is a manifestation of life.
I believe the Universe is planned for good.
I believe it is possible that I shall make other creeds, and change this one, or add to it, from time to time, as new light may come to me.

The Power of Now (1997)
Source: The Power of Now: A Guide to Spiritual Enlightenment

"The Need for Ethical Culture" celebrating the seventy-fifth anniversary of the Ethical Culture Society, founded by Felix Adler (5 January 1951) (the full remarks can be found in Ideas and Opinions by Albert Einstein and Carl Seelig http://books.google.com/books?id=UppFAAAAYAAJ)
1950s
Context: I believe, indeed, that overemphasis on the purely intellectual attitude, often directed solely to the practical and factual, in our education, has led directly to the impairment of ethical values. I am not thinking so much of the dangers with which technical progress has directly confronted mankind, as of the stifling of mutual human considerations by a "matter-of-fact" habit of thought which has come to lie like a killing frost upon human relations. … The frightful dilemma of the political world situation has much to do with this sin of omission on the part of our civilization. Without "ethical culture," there is no salvation for humanity.

On his hopes for mankind in “In the Author’s Universe: Interview with Sci-Fi Author Cixin Liu” https://vocal.media/futurism/in-the-authors-universe-interview-with-sci-fi-author-cixin-liu in Vocal (2016)

Source: 1960s, Strength to Love (1963), Ch. 2 : Transformed nonconformist

Straight Into Darkness
Lyrics, Long After Dark (1982)