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 Primary source“Wisdom is the daughter of experience.”
— Leonardo da Vinci Primary source“Any one who in discussion relies upon authority uses, not his understanding, but rather his memory.”
— Leonardo da Vinci Primary source“Just as iron rusts unless it is used, and water putrifies or, in cold, turns to ice, so our intellect spoils unless it is kept in use.”
— Leonardo da Vinci Primary sourceMore quotes by Leonardo da Vinci →
“’Tis easier to prevent bad habits than to break them.”
— Benjamin Franklin Primary source“I will not be triumphed over.”
— Cleopatra Disputed“Approve not of him that commends all you say.”
— Benjamin Franklin Primary source“It is easier to forgive an Enemy than to forgive a Friend.”
— William Blake Primary source