Knowledge
  • Every branch of human knowledge, if traced up to its source and final principles, vanishes into mystery.

  • For the progress of scientific knowledge will lead to a constant increase of expenditure.

  • Sane judgment abhors nothing so much as a picture perpetrated with no technical knowledge, although with plenty of care and diligence.

  • Imparting knowledge is only lighting other men's candles at our lamp without depriving ourselves of any flame.

  • It is possible to fly without motors, but not without knowledge and skill.