Isaac Asimov libro Los límites de la Fundación
Fuente: The Foundation series (1951–1993), Foundation’s Edge (1982), Chapter 6 “Earth” section 1, p. 100
Fuente: Foundation's Edge
Isaac Asimov libro Los límites de la Fundación
Fuente: The Foundation series (1951–1993), Foundation’s Edge (1982), Chapter 6 “Earth” section 1, p. 100
Fuente: Foundation's Edge
Isaac Asimov libro Second Foundation
Second Foundation
Fuente: The Foundation series (1951–1993), Foundation’s Edge (1982), Chapter 12 “Agent” section 4, p. 226
“The spell of power never quite releases its hold.”
Fuente: The Foundation series (1951–1993), Second Foundation (1953), Chapter 12 “Lord”
“We abandoned the appearance of power to preserve the essence of it.”
Fuente: The Foundation series (1951–1993), Foundation’s Edge (1982), Chapter 20 “Conclusion” section 1, p. 408
Isaac Asimov libro Los propios dioses
Section 2, Chapter 2b, p. 104
The Gods Themselves (1972)
Part IV, The Traders, section 3
The Foundation series (1951–1993), Foundation (1951)
Isaac Asimov's Science Fiction Magazine, April 1990, p.6
General sources
"By Jove!" in View from a Height (1963); often misquoted as "Jupiter plus debris".
General sources
Isaac Asimov libro Runaround
"Runaround" in Astounding Science Fiction (March 1942); later published in I, Robot (1950)
The Three Laws of Robotics (1942)
Isaac Asimov libro Los propios dioses
Section 3, Chapter 12, p. 250
The Gods Themselves (1972)
"Nowhere!" Asimov's Science Fiction (September 1983)
General sources
“To Mankind
And the hope that the war against folly may someday be won, after all.”
Isaac Asimov libro Los propios dioses
Dedication, p. 5; this refers to the quotation of Friedrich Schiller from which Asimov derived the title of this novel: "Against stupidity the gods themselves contend in vain."
The Gods Themselves (1972)
“Courtiers don’t take wagers against the king’s skill. There is the deadly danger of winning.”
Part III, The Mayors, section 3
The Foundation series (1951–1993), Foundation (1951)
“I accept nothing on authority. A hypothesis must be backed by reason, or else it is worthless.”
Isaac Asimov libro I, Robot
“Reason”, p. 52
I, Robot (1950)
Isaac Asimov libro Los propios dioses
Section 3, Chapter 12, p. 244
The Gods Themselves (1972)