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“He who wishes to be rich in a day will be hanged in a year.”
— Leonardo da Vinci Primary source“Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments.”
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“Nothing great was ever achieved without enthusiasm.”
— Ralph Waldo Emerson Primary source“Nothing in life is so exhilarating as to be shot at without result.”
— Winston Churchill Primary source“Nothing is troublesome that we do willingly.”
— Thomas Jefferson Primary source“I would study, I would know, I would admire forever.”
— Ralph Waldo Emerson Primary source