“Women and cats will do as they please, and men and dogs should relax and get used to the idea.”
Time Enough for Love (1973)
“Women and cats will do as they please, and men and dogs should relax and get used to the idea.”
Time Enough for Love (1973)
“Do not handicap your children by making their lives easy.”
Time Enough for Love (1973)
“Always listen to experts. They'll tell you what can't be done, and why. Then do it.”
Source: Time Enough for Love
“Progress is made by lazy men looking for easier ways to do things.”
Time Enough for Love (1973)
Variant: Progress doesn't come from early risers — progress is made by lazy men looking for easier ways to do things.
“If a thing's worth doing, it's worth overdoing. (Lazarus Long)”
Variant: Take big bites. Anything worth doing is worth overdoing.
Source: Time Enough for Love
“How can I possibly put a new idea into your heads, if I do not first remove your delusions?”
Life-Line (p. 15)
Short fiction, The Past Through Tomorrow (1967)
The Moon Is a Harsh Mistress (1966)
The Pragmatics of Patriotism (1973)
Context: In this complex world, science, the scientific method, and the consequences of the scientific method are central to everything the human race is doing and to wherever we are going. If we blow ourselves up we will do it by misapplication of science; if we manage to keep from blowing ourselves up, it will be through intelligent application of science.
“There is solemn satisfaction in doing the best you can for eight billion people.”
Double Star (1956)
Context: There is solemn satisfaction in doing the best you can for eight billion people. Perhaps their lives have no cosmic significance, but they have feelings. They can hurt.
“Life-Line”, p. 24
The Past Through Tomorrow (1967)
Context: There are but two ways of forming an opinion in science. One is the scientific method; the other, the scholastic. One can judge from experiment, or one can blindly accept authority. To the scientific mind, experimental proof is all important and theory is merely a convenience in description, to be junked when it no longer fits. To the academic mind, authority is everything and facts are junked when they do not fit theory laid down by authority.
The Pragmatics of Patriotism (1973)
Context: I now define "moral behavior" as "behavior that tends toward survival." I won't argue with philosophers or theologians who choose to use the word "moral" to mean something else, but I do not think anyone can define "behavior that tends toward extinction" as being "moral" without stretching the word "moral" all out of shape.
“I never do anything I don't want to do. Nor does anyone, but in my case I am always aware of it.”
Source: Stranger in a Strange Land
Source: Stranger in a Strange Land
Source: Friday (1983), Ch. XXI, p. 214
Source: Time Enough for Love
Source: Starship Troopers