“All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.”
Source: Leonardo's Notebooks
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Leonardo Da Vinci 363
Italian Renaissance polymath 1452–1519Related quotes
“Experiment is the mother of knowledge.”
Source: A Wrinkle in Time: With Related Readings
“Experience, the universal Mother of Sciences.”
Source: Don Quixote de la Mancha (1605–1615), Part I, Book III, Ch. 7.
“And this [experimental] science verifies all natural and man-made things in particular, and in their appropriate discipline, by the experimental perfection, not by arguments of the still purely speculative sciences, nor through the weak, and imperfect experiences of practical knowledge. And therefore, this is the matron of all preceding sciences, and the final end of all speculation.”
Et hæc scientia certificat omnia naturalia et artificialia in particulari et in propria disciplina, per experientiam perfectam; non per argumenta, ut scientiæ pure speculativae, nec per debiles et imperfecta experientias ut scientiae operativæ. Et ideo hæc est domina omnium scientiarum præcedentium, et finis totius speculationis.
Ch 13 ed. J. S. Brewer Opera quadam hactenus inedita (1859) p. 46
Opus Tertium, c. 1267
“Religion is not 'doctrinal knowledge,' but wisdom born of personal experience.”
Holborn, Hajo; A HISTORY OF MODERN GERMANY: The Reformation; 1959/1982 Princeton university Press
Book 1, Chapter 3, p. 52
Institutes of the Christian Religion (1536; 1559)
Book Two, Chapter V.
Democracy in America, Volume II (1840), Book Two
Context: Americans of all ages, all stations of life, and all types of disposition are forever forming associations... In democratic countries knowledge of how to combine is the mother of all other forms of knowledge; on its progress depends that of all the others.
Introduction I. Of the Difference Between Pure and Empirical Knowledge
Critique of Pure Reason (1781; 1787)
Variant: That all our knowledge begins with experience there can be no doubt.
Context: That all our knowledge begins with experience there can be no doubt. For how is it possible that the faculty of cognition should be awakened into exercise otherwise than by means of objects which affect our senses, and partly of them selves produce representations, partly rouse our powers of understanding into activity, to compare, to connect, or to separate these, and so to convert the raw material of our sensuous impressions into a knowledge of objects, which is called experience? In respect of time, therefore, no knowledge of ours is antecedent to experience, but begins with it. But though all our knowledge begins with experience, it by no means follows, that all arises out of experience. For, on the contrary, it is quite possible that our empirical knowledge is a compound of that which we receive through impressions, and that which the faculty of cognition supplies from itself (sensuous impressions giving merely the occasion)... It is, therefore, a question which requires close investigation, and is not to be answered at first sight,—whether there exists a knowledge altogether independent of experience, and even of all sensuous impressions? Knowledge of this kind is called à priori, in contradistinction to empirical knowledge which has its sources à posteriori, that is, in experience.
Source: Course of Experimental Philosophy, 1745, p. v: Preface
Context: All the knowledge we have of nature depends upon facts; for without observations and experiments our natural philosophy would only be a science of terms and an unintelligible jargon. But then we must call in Geometry and Arithmetics, to our Assistance, unless we are willing to content ourselves with natural History and conjectural Philosophy. For, as many causes concur in the production of compound effects, we are liable to mistake the predominant cause, unless we can measure the quantity and the effect produced, compare them with, and distinguish them from, each other, to find out the adequate cause of each single effect, and what must be the result of their joint action.