“It is the sure certainty of having found unity with nature, this calm causes one of the strongest experiences.”

On the Correct Handling of Contradictions Among the People

Source: Zen Mind, Beginner's Mind: Informal Talks on Zen Meditation and Practice

The Books in My Life (1952) Chapter 11: The Story of My Heart (2nd edition. New York: New Directions Publishing, 1969, p. 192)

Ikujiro Nonaka (1991), "The Knowledge-Creating Company", Harvard Business Review 69 (6 Nov-Dec): 96–104

1940s, Philosophy for Laymen (1946)
Context: The demand for certainty is one which is natural to man, but is nevertheless an intellectual vice. If you take your children for a picnic on a doubtful day, they will demand a dogmatic answer as to whether it will be fine or wet, and be disappointed in you when you cannot be sure. The same sort of assurance is demanded, in later life, of those who undertake to lead populations into the Promised Land. “Liquidate the capitalists and the survivors will enjoy eternal bliss.” “Exterminate the Jews and everyone will be virtuous.” “Kill the Croats and let the Serbs reign.” “Kill the Serbs and let the Croats reign.” These are samples of the slogans that have won wide popular acceptance in our time. Even a modicum of philosophy would make it impossible to accept such bloodthirsty nonsense. But so long as men are not trained to withhold judgment in the absence of evidence, they will be led astray by cocksure prophets, and it is likely that their leaders will be either ignorant fanatics or dishonest charlatans. To endure uncertainty is difficult, but so are most of the other virtues. For the learning of every virtue there is an appropriate discipline, and for the learning of suspended judgment the best discipline is philosophy.
But if philosophy is to serve a positive purpose, it must not teach mere skepticism, for, while the dogmatist is harmful, the skeptic is useless. Dogmatism and skepticism are both, in a sense, absolute philosophies; one is certain of knowing, the other of not knowing. What philosophy should dissipate is certainty, whether of knowledge or of ignorance.

As quoted in The God Particle (1993) by Leon Lederman – ISBN 978–0–618–71168–0
Context: The progress of science is the discovery at each step of a new order which gives unity to what had long seemed unlike. Faraday did this when he closed the link between electricity and magnetism. Clerk Maxwell did it when he linked both with light. Einstein linked time with space, mass with energy, and the path of light past the sun with the flight of a bullet; and spent his dying years in trying to add to these likenesses another, which would find a single imaginative order between the equations between Clerk Maxwell and his own geometry of gravitation When Coleridge tried to define beauty, he returned always to one deep thought: beauty he said, is "unity in variety." Science is nothing else than the search to discover unity in the wild variety of nature — or more exactly, in the variety of our experience.

The Spiritual Espousals (c. 1340)
Context: You should watch the wise bee and do as it does. It dwells in unity, in the congregation of its fellows, and goes forth, not in the storm, but in calm and still weather, in the sunshine, towards all those flowers in which sweetness may be found. It does not rest on any flower, neither on any beauty nor on any sweetness; but it draws from them honey and wax, that is to say, sweetness and light-giving matter, and brings both to the unity of the hive, that therewith it may produce fruits, and be greatly profitable. Christ, the Eternal Sun, shining into the open heart, causes that heart to grow and to bloom, and it overflows with all the inward powers with joy and sweetness. So the wise man will do like the bee, and he will fly forth with attention and with reason and with discretion, towards all those gifts and towards all that sweetness which he has ever experienced, and towards all the good which God has ever done to him. And in the light of love and with inward observation, he will taste of the multitude of consolations and good things; and will not rest upon any flower of the gifts of God, but, laden with gratitude and praise, will fly back into the unity, wherein he wishes to rest and to dwell eternally with God.

Source: Man, the State, and War (1959), Chapter III, Some Implications Of The First Image, p. 42