“The human mind always makes progress, but it is a progress in spirals.”

Quels que soient les progrès des connaissances humaines, il y aura toujours place pour l'ignorance et par suite pour le hasard et la probabilité.
[Emile Borel, Le hasard, Librairie Félix Alcan, 1914, 12-13]

Albert Einstein, statement sent to the Boston journal The Jewish Advocate on 1931-10-19 on the occasion of Justice Brandeis' seventy-fifth birthday, quoted in Helen Dukas and Banesh Hoffman, eds., Albert Einstein: The Human Side (Princeton University Press, 1981), ISBN 0-691-02368-9, p. 85.

Remarks by President Obama and Prime Minister Abe of Japan at Hiroshima Peace Memorial at Hiroshima Peace Memorial in Hiroshima, Japan (May 27, 2016) https://www.whitehouse.gov/the-press-office/2016/05/27/remarks-president-obama-and-prime-minister-abe-japan-hiroshima-peace
2016
Context: There are many sites around the world that chronicle this war -- memorials that tell stories of courage and heroism; graves and empty camps that echo of unspeakable depravity. Yet in the image of a mushroom cloud that rose into these skies, we are most starkly reminded of humanity’s core contradiction; how the very spark that marks us as a species -- our thoughts, our imagination, our language, our tool-making, our ability to set ourselves apart from nature and bend it to our will -- those very things also give us the capacity for unmatched destruction. [... ] Science allows us to communicate across the seas and fly above the clouds; to cure disease and understand the cosmos. But those same discoveries can be turned into ever-more efficient killing machines. The wars of the modern age teach this truth. Hiroshima teaches this truth. Technological progress without an equivalent progress in human institutions can doom us. The scientific revolution that led to the splitting of an atom requires a moral revolution, as well.

2000s, 2000, A Continent Bleeds (2000)

Preface
The Reorganization of the European Community (1814)

Source: https://jamesclear.com/goals-systems

page 15
The Other Wife (2003)

Αs translated by William Smith, in The Popular Works of Johann Gottlieb Fichte (1889), Vol. I, Lecture IV, p. 188.
The Vocation of the Scholar (1794)
Context: Upon the progress of knowledge the whole progress of the human race is immediately dependent: he who retards that, hinders this also. And he who hinders this, —what character does he assume towards his age and posterity? Louder than with a thousand voices, by his actions he proclaims into the deafened ear of the world present and to come —"As long as I live at least, the men around me shall not become wiser or better; — for in their progress I too, notwithstanding all my efforts to the contrary, should be dragged forward in some direction; and this I detest I will not become more enlightened, — I will not become nobler. Darkness and perversion are my elements, and I will summon all my powers together that I may not be dislodged from them."