“Astronomy is perhaps the science whose discoveries owe least to chance, in which human understanding appears in its whole magnitude, and through which man can best learn how small he is.”
C 23
Aphorisms (1765-1799), Notebook C (1772-1773)
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Georg Christoph Lichtenberg 137
German scientist, satirist 1742–1799Related quotes

Source: Existence (1958), p. 36; also published in The Discovery of Being : Writings in Existential Psychology (1983), Part II : The Cultural Background, Ch. 5 : Kierkegaard, Nietzsche, and Freud, p. 87
in Impact of Advances in science and new technologies on society http://www.here-now4u.de/eng/impact_of_advances_in_science_.htm, 1998.

“Of all the sciences, astronomy was the one the superstitious liked least.”
Source: Learning the World (2005), Chapter 4 “A Moving Point of Light” (p. 51)
Source: Die Mathematik die Fackelträgerin einer neuen Zeit (Stuttgart, 1889), p. 94.

Introduction
Popular Astronomy: A Series of Lectures Delivered at Ipswich (1868)

Commencement address at his daughter Linell's boarding school, as quoted http://www.washingtonpost.com/wp-dyn/content/article/2005/05/05/AR2005050501359_pf.html in The Washington Post (8 May 2005)
Context: Among other things I think humor is a shield, a weapon, a survival kit... So here we are several billion of us, crowded into our global concentration camp for the duration. How are we to survive? Solemnity is not the answer, any more than witless and irresponsible frivolity is. I think our best chance lies in humor, which in this case means a wry acceptance of our predicament. We don't have to like it but we can at least recognize its ridiculous aspects, one of which is ourselves.

On the Hypotheses which lie at the Bases of Geometry (1873)