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All the ideas for 'talk', 'Freedom to Act' and 'Il Saggiatore ('The Assayer')'

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6 ideas

12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities

7401	Heat and colour don't exist, so cannot mislead about the external world [Galileo, by Tuck]
	Full Idea: Galileo argued that there is no such thing as heat (and hence also as colour) in the external world, so there is no reason to conclude from colour-blindness that we cannot know the truth about the world.
	From: report of Galileo Galilei (Il Saggiatore ('The Assayer') [1623]) by Richard Tuck - Hobbes Ch.1
	A reaction: This key idea, taken up by Gassendi, Descartes and Locke, seems to me to be one of the most important (and, in retrospect, rather obvious) facts ever worked out by the human mind. Why does anyone still doubt it?

5454	Tastes, odours and colours only reside in consciousness, and would disappear with creatures [Galileo]
	Full Idea: I think tastes, odours, colours, and so on are mere names as far as the objects are concerned, and only reside in consciousness. Hence if the living creature were removed, all these qualities would be wiped away and annihilated.
	From: Galileo Galilei (Il Saggiatore ('The Assayer') [1623]), quoted by Brian Ellis - The Philosophy of Nature: new essentialism Ch.3
	A reaction: A nice bold assertion of the primary/secondary distinction from the first great scientist. I agree, and to disagree (and hence side with Berkeley and Hume) is to head for metaphsical and epistemological confusion.

13. Knowledge Criteria / E. Relativism / 2. Knowledge as Convention

1556	By nature people are close to one another, but culture drives them apart [Hippias]
	Full Idea: I regard you all as relatives - by nature, not by convention. By nature like is akin to like, but convention is a tyrant over humankind and often constrains people to act contrary to nature.
	From: Hippias (fragments/reports [c.430 BCE]), quoted by Plato - Protagoras 337c8

14. Science / D. Explanation / 2. Types of Explanation / i. Explanations by mechanism

16560	Galileo introduced geometrico-mechanical explanation, based on Archimedes [Galileo, by Machamer/Darden/Craver]
	Full Idea: The modern idea of explaining with mechanisms became current in the 17th century when Galileo articulated a geometrico-mechanical form of explanation based on Archimedes' simple machines. This became the 'mechanical philosophy'.
	From: report of Galileo Galilei (Il Saggiatore ('The Assayer') [1623]) by Machamer,P/Darden,L/Craver,C - Thinking About Mechanisms 5.2
	A reaction: So is Archimedes the source? I would say that mechanical explanation is just commonsense, and is predominant in all human thinking, even in tiny infants.

20. Action / C. Motives for Action / 3. Acting on Reason / c. Reasons as causes

19698	Deviant causal chain: a reason causes an action, but isn't the reason for which it was performed [Davidson, by Neta]
	Full Idea: A 'deviant causal chain' is when an agent has a reason for performing an action, and for the reason to cause the performance, without that being the reason for which the agent performed it.
	From: report of Donald Davidson (Freedom to Act [1973]) by Ram Neta - The Basing Relation II
	A reaction: Davidson's thesis is that 'reasons are causes'. This was a problem he faced. I think this discussion is now obscured by the complex and multi-layered account of action which is emerging from neuroscience.

26. Natural Theory / A. Speculations on Nature / 4. Mathematical Nature

3645	To understand the universe mathematics is essential [Galileo]
	Full Idea: The great book of the universe cannot be understood unless one can understand the language in which it is written - the language of mathematics.
	From: Galileo Galilei (Il Saggiatore ('The Assayer') [1623], VI.232)
	A reaction: Nice, though one might say that humans created the language of maths to help them discuss the patterns they perceived in nature. Maybe what is special is order, and all order can be described mathematically.