Related:

• The difference between science and the fuzzy subjects is that science requires reasoning, while those other subjects merely require scholarship.
  -- Lazarus Long, from Robert A. Heinlein's "Time Enough For Love...
• Love your country, but never trust its government. -- Robert A. Heinlein.
• Belief gets in the way of learning. -- Robert Heinlein, Time Enough for Love
• Never underestimate the power of human stupidity. -- Robert Heinlein, Time Enough for Love
• To get anywhere, or even to live a long time, a man has to guess, and guess right, over and over again, without enough data for a logical answer.
  -- Robert Heinlein, Time Enough for Love...
• Never try to explain computers to a layman. It's easier to explain sex to a virgin.
  -- Robert Heinlei...
• There will always be survivors. -- Robert A. Heinlei
• Whether the authorities be invaders or merely local tyrants, the effect of such [gun control] laws is to place the individual at the mercy of the state, unable to resist.
  -- Robert Anson Heinlein, 1949...
• The difference between science and the fuzzy subjects is that science requires reasoning while those other subjects merely require scholarship.
  -- Robert Heinlei...