“The greatest deception men suffer is from their own opinions.”
Leonardo da Vinci (verified)
The Notebooks of Leonardo Da Vinci (Primary source)
The Notebooks of Leonardo da Vinci, translated by Jean Paul Richter, is a thematic anthology of Leonardo’s writings on art, science, anatomy, engineering, and philosophy—revealing the genius’s insights, observations, and inventions through his own reflective and analytical prose.
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“A man is worthy of praise or blame solely on account of those actions which lie within his power to do or not to do.”
— Leonardo da Vinci (verified)“Wisdom is the daughter of experience.”
— Leonardo da Vinci (verified)“To speak well of a base man is much the same as speaking ill of a good man.”
— Leonardo da Vinci (verified)“Necessity is the mistress and guide of nature.”
— Leonardo da Vinci (verified)More quotes by Leonardo da Vinci →
“Approve not of him that commends all you say.”
— Benjamin Franklin (verified)“You may delay, but time will not.”
— Benjamin Franklin (verified)“Men who hesitate never succeed in their undertakings.”
— Napoleon Bonaparte (verified, secondary source)“There is no little enemy.”
— Benjamin Franklin (verified)