Abstract
The paper aims at analyzing Lambert’s conception of empirical knowledge that is part of scientific learning. Indeed, in the Neues Organon (1764), he claims that science is obtained with the help of both a priori and a posteriori knowledge. Lambert’s originality lies on the application of the analytic and synthetic methods of reasoning, which are traditionally used in formal disciplines, to the realm of experience. Transforming common knowledge into scientific a posteriori knowledge is mainly based on the employment of such demonstrative methods. This allows Lambert to introduce some important theoretical tools in his theory of experience, in particular about the search for the conditions of observations and experimentations as well as the establishment of hypothesis. For Lambert, the synthetic method in empirical deductions requires the use of conjectures and probable principles.
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Notes
- 1.
Lambert’s distinction is most probably partially taken from Wolff’s logic. Indeed, Wolff differentiates between historical, mathematical, and philosophical cognitions. The first enables us to conceive of particular facts, the second to measure quantities between things, and the third to explain how things are possible. This means, in particular, that philosophical knowledge shows how things, which are at first known through historical cognition, are possible entities (Wolff 1962).
- 2.
Lambert (1965a), I, 386–387.
- 3.
Lambert (1965a), I, 390–391.
- 4.
Lambert (1965a), I, 414–415.
- 5.
These three sciences are grounded on the simple concepts of space and time. First, geometry relies on the concept of space, constructing all figures and bodies from the spatial properties of the point, the distance, and the line. Second, chronometry is based on the concept of time, measuring its segmentations into cycles, periods, etc. Third, phoronomy is the theory of motion, velocity, and translation, which is made possible by the combination of both primitive concepts of space and time (Lambert 1965a, I, 423). In the Anlage zur Architektonik, Lambert details sciences that are founded on primitive concepts (Lambert 1965b, 40–47).
- 6.
- 7.
- 8.
- 9.
Lambert (1965a), I, 472.
- 10.
- 11.
Lambert (1965a), I, 460.
- 12.
Lambert (1965a), I, 95.
- 13.
We find a similar distinction in Wolff (1965), 161–162.
- 14.
Lambert (1965a), I, 423.
- 15.
Lambert constantly refers to these authors when he examines the method of analyzing, especially in the Anlage zur Architektonik (Lambert 1965b, 6–13). Lambert is nevertheless quite critical of Wolff’s method, since he did not, according to Lambert, always follow the Euclidian model, which is at the basis of the geometrical methodology. For example, in the Deutsche Metaphysik (Wolff 2009), Wolff did not always provide the postulates and problems that were necessary for his demonstrations. In a recent paper, Katherine Dunlop analyzes these criticisms (Dunlop 2009).
- 16.
Lambert (1965b), 21.
- 17.
Lambert (1965a), I, 96.
- 18.
Locke (1706), Book 2, Chap. 4, sections 1–6.
- 19.
- 20.
Lambert already affirms this in the Criterium veritatis (Lambert 2008, 446–447).
- 21.
Lambert (1965a), I, 348.
- 22.
Lambert (1965a), I, 349–350.
- 23.
Lambert explains how we can attain distinct and complete concepts in the first section of the Dianoiologie (Lambert 1965a, I, 6–10).
- 24.
- 25.
Lambert (1965a), I, 351.
- 26.
Idem.
- 27.
- 28.
Lambert (1965a), I, 357.
- 29.
Lambert (1965a), I, 352–353.
- 30.
Lambert (1965a), I, 353.
- 31.
Lambert (1965a), I, 365–366.
- 32.
On this question, see the article of Siegfried Bodenmann, Chap. 6, in this volume.
- 33.
Trembley (1744), iii.
- 34.
Lambert also gives the example of Christopher Columbus who was seeking a road to reach India, but ended up discovering the American continents. In this case, the result was completely undetermined, although there was an intention and a preparation for finding a new sea route: Lambert (1965a), I, 366.
- 35.
Lambert’s position must also be compared with some doctrines held by philosophers at the Berlin Academy of Science, that Lambert joins in 1763. Leonhard Euler, Pierre-Louis Moreau de Maupertuis and Johann Bernhard Merian were important figures of this institution, who maintained ideas about scientific methodology. On this topic, see the article of André Charrak, Chap. 10, in this volume, but also Leduc & Dumouchel (2015).
- 36.
Lambert (1965a), I, 387.
- 37.
Lambert (1965a), I, 370.
- 38.
Lambert (1965a), I, 373–374.
- 39.
As Lambert explains in the Criterium veritatis, analysis, in its general sense, is used to resolve a concept or a proposition into simpler contents. In a way, it does not provide new knowledge; rather it decomposes already acquired cognitive content (Lambert 2008, 438–439). In contrast, synthesis constitutes a true method of discovery (Lambert 2008, 443).
- 40.
Wolff already mentions this point in his theory of experience (Wolff 1965, 185–186).
- 41.
Lambert (1965a), I, 371–372. Earlier, Lambert makes reference to Jean Richer’s numerous observations with the pendulum, especially in Cayenne (Lambert 1965a, I, 355). But these experiences are considered by Lambert, as Fremderfahrungen, namely experiences made by others. Experiences conducted by others can be accepted only under strict conditions of validation. In particular, all the concepts and individuals involved in the experience must be known to us, otherwise it only provides incomplete and unreliable knowledge: “Besonders aber ist anzumerken, dass wenn die Erfahrung, so man von andern hat, einen neuen Begriff in sich schliesst, aus diesem Begriffe alle Individualien notwendig wegbleiben, und daher die Erzählung unvollständig wird” (Lambert 1965a, I, 354).
- 42.
Lambert (1965a), I, 372–373.
- 43.
Lambert (1965a), I, 374–375.
- 44.
- 45.
Lambert (1965a), I, 367.
- 46.
Aristotle (1982), II, 3.
- 47.
- 48.
Newton (1687), III, prop. XIX-XX.
- 49.
Lambert (1965a), I, 359–360.
- 50.
- 51.
Lambert (1965a), I, 363.
- 52.
Lambert (1965a), I, 369.
- 53.
Lambert (1965a), I, 375.
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Leduc, C. (2018). Conducting Observations and Tests: Lambert’s Theory of Empirical Science. In: Bodenmann, S., Rey, AL. (eds) What Does it Mean to be an Empiricist?. Boston Studies in the Philosophy and History of Science, vol 331. Springer, Cham. https://doi.org/10.1007/978-3-319-69860-1_12
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