Huangbo Xiyun quote: “When all the Buddhas manifest themselves in the world, they proclaim nothing but the One Mind.”

“They do not know that, if they put a stop to conceptual thought and forget their anxiety, the Buddha will appear before them, for this Mind is the Buddha and the Buddha is all living beings. It is not the less for being manifested in ordinary beings, nor is it greater for being manifest in the Buddhas.”

Huangbo Xiyun Chinese Zen Buddhist

Source: The Zen Teachings of Huang Po (1958), p. 29
Context: All the Buddhas and all sentient beings are nothing but the One Mind, beside which nothing exists. This Mind, which is without beginning, is unborn and indestructible. It is not green nor yellow, and has neither form nor appearance. It does not belong to the categories of things which exist or do not exist, nor can it be thought of in terms of new or old. It is neither long nor short, big nor small, for it transcends all limits, measure, names, traces and comparisons. It is that which you see before you - begin to reason about it and you at once fall into error. It is like the boundless void which cannot be fathomed or measured. The One Mind alone is the Buddha, and there is no distinction between the Buddha and sentient things, but that sentient beings are attached to forms and so seek externally for Buddhahood. By their very seeking they lose it, for that is using the Buddha to seek for the Buddha and using mind to grasp Mind. Even though they do their utmost for a full aeon, they will not be able to attain it. They do not know that, if they put a stop to conceptual thought and forget their anxiety, the Buddha will appear before them, for this Mind is the Buddha and the Buddha is all living beings. It is not the less for being manifested in ordinary beings, nor is it greater for being manifest in the Buddhas.

“All the Buddhas and all sentient beings are nothing but the One Mind, beside which nothing exists. This Mind, which is without beginning, is unborn and indestructible.”

Huangbo Xiyun Chinese Zen Buddhist

Source: The Zen Teachings of Huang Po (1958), p. 29
Context: All the Buddhas and all sentient beings are nothing but the One Mind, beside which nothing exists. This Mind, which is without beginning, is unborn and indestructible. It is not green nor yellow, and has neither form nor appearance. It does not belong to the categories of things which exist or do not exist, nor can it be thought of in terms of new or old. It is neither long nor short, big nor small, for it transcends all limits, measure, names, traces and comparisons. It is that which you see before you - begin to reason about it and you at once fall into error. It is like the boundless void which cannot be fathomed or measured. The One Mind alone is the Buddha, and there is no distinction between the Buddha and sentient things, but that sentient beings are attached to forms and so seek externally for Buddhahood. By their very seeking they lose it, for that is using the Buddha to seek for the Buddha and using mind to grasp Mind. Even though they do their utmost for a full aeon, they will not be able to attain it. They do not know that, if they put a stop to conceptual thought and forget their anxiety, the Buddha will appear before them, for this Mind is the Buddha and the Buddha is all living beings. It is not the less for being manifested in ordinary beings, nor is it greater for being manifest in the Buddhas.

“But people of the deepest understanding look within, distracted by nothing. Since a clear mind is the Buddha, they attain the understanding of a Buddha without using the mind.”

Bodhidharma (483–540) Chinese philosopher and Buddhist Monk

Source: The Zen Teaching of Bodhidharma

“Nothing is lost if one has the courage to proclaim that all is lost and we must begin anew.”

Julio Cortázar book Hopscotch

Nada está perdido si se tiene el valor de proclamar que todo está perdido y hay que empezar de nuevo.
Source: Rayuela (Hopscotch) (1963), Chapter 71.

“The primordial Buddhas are saying,
: "Not doing wrong action,
Sincerely doing every kind of good,
naturally clarifies this mind.
This is the Teaching of all the Buddhas."
This is the universal precept of the Seven Buddhas, our Founding Ancestors, and is truly transmitted by earlier Buddhas to later Buddhas and is received by later Buddhas from earlier Buddhas. It is not only the Teaching of the Seven Buddhas but of all the Buddhas. This principle must be investigated and mastered through practice.”

Dogen (1200–1253) Japanese Zen buddhist teacher

"Shoaku makusa : Not Doing Wrong Action" http://wwzc.org/dharma-text/shoaku-makusa-not-doing-wrong-action as translated by Anzan Hoshin roshi and Yasuda Joshu Dainen roshi (2007)