“What is there new that we have yet to accomplish? Love, for as yet we have only accomplished hatred and self-pleasing; Knowledge, for as yet we have only accomplished error and perception and conceiving; Bliss, for as yet we have only accomplished pleasure and pain and indifference; Power, for as yet we have only accomplished weakness and effort and a defeated victory; Life, for as yet we have only accomplished birth and growth and dying; Unity, for as yet we have only accomplished war and association.”

Book 1; On the necessity of standards
Mozi

quoted in the article The United Nations—How Strong a World Force?, in The Watchtower magazine, September 15, 1974.
Context: You must not expect the United Nations to accomplish miracles. We are made up of sovereign nations. We can only accomplish what our member nations allow us to accomplish.

83, a slight variant of this was later published in Parables and Paradoxes (1946):
We are sinful not merely because we have eaten of the Tree of Knowledge, but also because we have not yet eaten of the Tree of Life. The state in which we find ourselves is sinful, quite independent of guilt.
Also quoted in this form in The Parables of Peanuts (1968) by Robert L. Short, and Like a Dream, Like a Fantasy: The Zen Teachings and Translations of Nyogen (2005)
The Zürau Aphorisms (1917 - 1918)
Context: We are sinful not only because we have eaten of the Tree of Knowledge, but also because we have not yet eaten of the Tree of Life. The state in which we are is sinful, irrespective of guilt.

Islamic summit 1997
Attributed

Variant: Kind words don't cost much. Yet they accomplish much.

Variant: To accomplish great things, we must dream as well as act.
Source: Discours de réception, Séance De L'académie Française (introductory speech at a session of the French Academy), 24th December 1896, on Ferdinand de Lesseps' work on the Suez Canal.
Context: To accomplish great things we must not only act, but also dream; not only plan, but also believe.

Opera Omnia, ser. 1, vol. 2, p. 459 Spcimen de usu observationum in mathesi pura, as quoted by George Pólya, Induction and Analogy in Mathematics Vol. 1, Mathematics and Plausible Reasoning (1954)
Context: It will seem a little paradoxical to ascribe a great importance to observations even in that part of the mathematical sciences which is usually called Pure Mathematics, since the current opinion is that observations are restricted to physical objects that make impression on the senses. As we must refer the numbers to the pure intellect alone, we can hardly understand how observations and quasi-experiments can be of use in investigating the nature of numbers. Yet, in fact, as I shall show here with very good reasons, the properties of the numbers known today have been mostly discovered by observation, and discovered long before their truth has been confirmed by rigid demonstrations. There are many properties of the numbers with which we are well acquainted, but which we are not yet able to prove; only observations have led us to their knowledge. Hence we see that in the theory of numbers, which is still very imperfect, we can place our highest hopes in observations; they will lead us continually to new properties which we shall endeavor to prove afterwards. The kind of knowledge which is supported only by observations and is not yet proved must be carefully distinguished from the truth; it is gained by induction, as we usually say. Yet we have seen cases in which mere induction led to error. Therefore, we should take great care not to accept as true such properties of the numbers which we have discovered by observation and which are supported by induction alone. Indeed, we should use such discovery as an opportunity to investigate more exactly the properties discovered and to prove or disprove them; in both cases we may learn something useful.