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“Threats alone are the weapons of the threatened man.”
— Leonardo da Vinci Primary sourceMore quotes by Leonardo da Vinci →
“A bend in the road is not the end of the road… Unless you fail to make the turn.”
— Helen Keller Disputed“Books are the best of things, well used; abused, among the worst. What is the right use? What is the one end which all means go to effect? They are for nothing but to inspire.”
— Ralph Waldo Emerson Primary source“You never know what is enough unless you know what is more than enough.”
— William Blake Primary source“Take counsel in wine, but resolve afterwards in water.”
— Benjamin Franklin Primary sourceAction Learning Thinking Intellect