Leonardo da Vinci Quotes About Certainty

Quotes about: Certainty

• To me it seems that those sciences are vain and full of error which are not born of experience, mother of all certainty, first-hand experience which in its origins, or means, or end has passed through one of the five senses.

  Leonardo da Vinci

  Mother, Philosophy, Mean

• Those who condemn the supreme certainty of mathematics feed on confusion, and can never silence the contradictions of the sophistical sciences which lead to eternal quackery.

  Leonardo da Vinci

  Inspirational, Life, Confusion

  Leonardo (da Vinci), Irma A. Richter, Thereza Wells (2008). “Notebooks”, p.9, Oxford University Press

• No human investigation can claim to be scientific if it doesn't pass the test of mathematical proof.

  Leonardo da Vinci

  Ontology, Tests, Logic

• We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary to the senses, such as the existence of God and the soul.

  Leonardo da Vinci

  Soul, Doubt, Existence

• Those who are enamoured of practice without science are like a pilot who goes into a ship without rudder or compass and never has any certainty of where he is going. Practice should always be based upon a sound knowledge of theory.

  Leonardo da Vinci

  Practice, Sound, Pilots

  Dell' Anatomia Vol. II, Ch. 29

• He who does not understand the supreme certainty of mathematics is wallowing in confusion.

  Leonardo da Vinci

  Confusion, Ontology, Doe

• Slender certainty is better than portentous falsehood.

  Leonardo da Vinci

  Truth, Slender, Certainty

  Leonardo Da Vinci (2015). “Thoughts on Art and Life: "Behind the Genius"”, p.41, eKitap Projesi

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