Common sense

• "Since the world is what it is, it is clear that valid reasoning from sound principles cannot lead to error; but a principle may be so nearly true as to deserve theoretical respect, and yet may lead to practical consequences which we feel to be absurd. There is therefore a justification for common sense in philosophy, but only as showing that our theoretical principles cannot be quite correct so long as their consequences are condemned by an appeal to common sense which we feel to be irresistible. The theorist may retort that common sense is no more infallible than logic. But this retort, though made by Berkeley and Hume, would have been wholly foreign to Locke's intellectual temper."
  • Sourced: A History of Western Philosophy Bertrand Russell

• "Nothing astonishes men so much as common sense and plain dealing."
  • Art sourced (1841) Ralph Waldo Emerson

• "It is inaccurate to say I hate everything. I am strongly in favor of common sense, common honesty, and common decency. This makes me forever ineligible for public office. "
  • sourced H. L. Mencken

• "Common sense is not so common."
  • Sourced: Dictionnaire Philosophique (1764) "Self-Love" Voltaire

• "Existe gente que está tan llena de sentido común que no le queda el más pequeño rincón para el sentido propio."
  • Translation: "There are people who are so full of common sense that they haven't the slightest cranny left for their own sense."
  • attributed Miguel de Unamuno

• "Common sense is the collection of prejudices acquired by age eighteen."
  • attributed Albert Einstein