QuoteRef: lucr_55

history of science
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coordinated motor programs
necessary truth
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philosophy of mind
relationship between brain and behavior
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Lucretius (Titus Lucretius Carus), De Rerum Natura, referenced by Cicero, 54 B.C. . Google

Other Reference

Lucretius, The Nature of Things, translated by A. E. Stallings, London: Penguin, 2007. References by book and line number.

7 ;;Quote: sweep away dread of the supernatural by observing Nature and her laws
7+;;Quote: nothing can be made of nothing; otherwise any breed could be born from any other; people would pop out of the sea
9 ;;Quote: many things have common elements; as words share letters
10 ;;Quote: the elements are of eternal stuff, linked with bonds of different strengths; unless a strong enough force encounters it, a thing stays safely as it was
10+;;Quote: nothing turns to nothing; all things decompose back to the elemental particles from which they arose
11 ;;Quote: wind is made of matter; though invisible, it acts like water
13 ;;Quote: lighter things contain more void; void is tangled up with things, and must exist
16 ;;Quote: time does not exist in its own right; it is part of things at motion and at rest; what happens to things in the past, present, and future
19 ;;Quote: it is faster to break something down than to make it again; so there must be a limit, allowing each thing to be made anew
20 ;;Quote: since each specie stays true to type, atoms must stay the same
23 ;;Quote: what is more certain than our senses to tell false from real
23+;;Quote: to claim that everything is fire does not make sense
26 ;;Quote: how atoms are arranged makes all the difference; the same atoms make the heavens, the sea, the land, the sun, crops, trees, animals; like letters of the alphabet
31 ;;Quote: the universe is limitless; can not run to the very end and launch a spear
32 ;;Quote: the elements are not ordered by their intellect; by trial and error they fell into their present form
39 ;;Quote: the unseen blows of atoms ultimately cause the myriads of motes to dance in a sunlit room
41 ;;Quote: the universe was not made by God for our sake; it is so profoundly flawed
42 ;;Quote: atoms have to swerve a little, by the smallest possible degree; otherwise they would fall like rain and never collide
43 ;;Quote: in the void, all things fall at equal speed; air and water do not resist all objects equally
43 ;;Quote: if atoms do not swerve a little, where does freewill come from? these motions have their beginning in the whim of each atom
44 ;;Quote: at the starting gate horses cannot burst free as quickly as the mind desires; voluntary motion has its impetus in thought
44 ;;Quote: freewill must arise from something other than collisions of atoms; it is not bowed by necessity; nothing can emerge from nothingness
44+;;Quote: freewill is due to the slight swerve of atoms, at a random time and place
50 ;;Quote: the number of atomic shapes is limited, otherwise some atoms would be infinitely large; only so many combinations of parts can fit in a given size
50+;;Quote: the different shapes of atoms arise from different combinations of its parts; change top and bottom, left and right, make all the permutations
65 ;;Quote: if animals have feelings because their atoms have feelings, there's nowhere you can stand; atoms do not laugh, nor are they skilled in philosophical discourse
65+;;Quote: feelings and intelligence arise from combinations of particles that are themselves devoid of all sensation
66 ;;Quote: when you rearrange atoms, their order, shapes and motions, then you also change what they compose; just like written language
67 ;;Quote: if the same force and nature abide everywhere, there are other worlds with other races of people and other kinds of animals in other places
67 ;;Quote: this world is the product of Nature, the seeds of things colliding into each other by pure chance
69 ;;Quote: food is what sustains everything; atoms are drawn to like until decay, blows, and lack of food brings all to ruin
77 ;;Quote: the nature of mind is physical as shown by real weapons and tangible blows
81 ;;Quote: character flaws can not be uprooted; e.g., prone to anger, easily terrorized, passive to a fault
81+;;Quote: anyone can live a life worthy of the gods
88 ;;Quote: the organs require the body; a hand, or eye, or nose, if separate and free, would melt with decay
88+;;Quote: although flesh contains the mind, mind and flesh are closer bound than contents and container
94 ;;Quote: mind stays true to type; if the mind was deathless and changeable, deer might attack hounds, hawk flee doves, man lack logic
97 ;;Quote: death is nothing we need fear; even if the soul survived death, it would be disconnected from our life now
111 ;;Quote: just as the sun sends particles of light, so things give off streams of images in all directions; e.g., reflections from a mirror
112 ;;Quote: a bowl of water instantly reflects light from the heavens; light must travel fast
115 ;;Quote: a mirror reverses left for right because images are dashed directly backwards and rebound
116 ;;Quote: a mirror apes our every move because images reflect at the angle of attack
121 ;;Quote: the concept of truth is rooted in the senses, what is real; if the senses are untrue, all reasoning is wrong
122 ;;Quote: words, voice, and sound are made of atoms; a shout makes the windpipe rough; noise and voice strike the sense when they crawl in the ear
125 ;;Quote: the sense of taste is flavours squeezed out of food onto the tongue
132 ;;Quote: nothing is born for our use; rather, that which is borne creates its own use; the tongue predates the word
150 ;;Quote: the earth, sun, skies, sea, stars, and moon are not holy bodies; they are inert, like the dead
156 ;;Quote: the sun, moon, and stars emit light and decay; even rocks and shrines decay
157 ;;Quote: the world is fresh and newborn; ships were recently improved; this book itself is new
158 ;;Quote: atoms, the void, and the universe last forever; atoms are utterly solid, the void has nothing to do wih blows, and the universe has no place beyond
160 ;;Quote: atoms, by trying each movement and combination, hit upon the building blocks of the earth, sky, sea, and living beings; without using design or intent
161 ;;Quote: the earth coalesced from a swirling maelstrom of atoms; the sun, moon, stars, and seas squeezed out from its core
164 ;;Quote: divers, possible explanations for the movements of the stars; which is right? we cannot say, but one of them has to hold true
168 ;;Quote: the sun at night has either reached the limit of the sky or continued beneath the ground
169 ;;Quote: the length of day and night change with the seasons because the sun's course above and below ground slice the sky's regions in unequal arcs, or air is denser underneath the earth, or the sun is created anew each day at different rates
169 ;;Quote: lunar phases are due to reflection from the sun, or from a turning ball, or from newly created moons
174 ;;Quote: in the beginning, there were many freaks that did not survive and reproduce; beasts have either wits, or bravery, or fleetness of foot to spare, ensuring their survival; beasts may be useful to us
177 ;;Quote: early man lived on the plains with denser bone and survived on their own; then they chased their pray and banded with others
177+;;Quote: neighbors formed the bonds of friendship; neither to be harmed, nor to harm others
182 ;;Quote: animals use different sounds in different situations; man's vocal range can distinguish all the different things he found
182 ;;Quote: fire comes from lightning or from the rubbing together of trunks and branches
194 ;;Quote: humans labour in vain for purple raiments; there's a point beyond which having does not increase pleasure; it leads to war
195 ;;Quote: recorded history is brief; man was already living in sturdy towers, working the soil, and sailing the seas; only reason can give us a longer view
195 ;;Quote: by trial and error, and probing, restless intellect, people have learned seamanship, agriculture, law, fortifications, weaponry, clothing, roads
201 ;;Quote: light travels faster than sound so we see the lightening before hearing the thunder, despite both having the same cause
208 ;;Quote: it is foolish to understand the thunderbolt as a hidden purpose of the gods; why are the innocents hurt, why is lightening wasted on deserted places, why provide a warning?
208+;;Quote: why does lightening favor the mountain peaks and higher places?
211 ;;Quote: rain from clouds is similar to laundry becoming damp with moisture from the sea
216 ;;Quote: the sun evaporates water from the sea; the sea is vast, yielding much water

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