Arthropods and vertebrates share some broad features of general organization - elongated, bilaterally symmetrical bodies, with sensory organs up front, excretory structures in the back, and some form of segmentation along the major axis. But the geometry of major internal organs could hardly be more different... Arthropods concentrate their nervous system on their ventral (belly) side as two major cords running along the bottom surface of the animal. The mouth also opens on the ventral side, with the esophagus passing between the two nerve cords, and the stomach and remainder of the digestive tube running along the body above the nerve cords. In vertebrates, and with maximal contrast, the central nervous system runs along the dorsal (top) surface as a single tube culminating in a bulbous brain at the front end. The entire digestive system then runs along the body axis below the nerve cord.
Stephen Jay GouldRelated topics
above animal axis belly body bottom brain broad bulbous central concentrate contrast cord different digestive dorsal end entire esophagus excretory form front general geometry major mouth nerve organization passing remainder running segmentation sensory share side single stomach surface system top tube ventral organs maximal cords runsRelated quotes
We are seeking to build up in this country a system of society in which there shall be freedom from want. We are seeking to join with others in extending that freedom from want all over the world, but we also seek to give to all peoples freedom from fear. The freedom from fear of war is not yet lifted from the men and women of the world. We are doing our utmost to make the United Nations Organization the instrument for banishing the fear of war from the world. But there are many countries to-day where there are other fears that oppress. Personal freedom is still far from complete in many countries. Freedom of conscience is still denied to many. Freedom of speech and freedom of the Press are still unknown in most areas of the world. A system of society that denies all of these other freedoms is not socialism, but only a form of collectivism.
Clement Attlee
In fact, the only person to rival Friedman for policy influence in the twentieth century is John Maynard Keynes, who had a strikingly different view of the role of government. Keynes was influential because he advocated more government intervention into what he perceived as poorly functioning private economies caught up in the Great Depression. In contrast to Keynes, Friedman put the main blame for the Depression on government failures, especially of monetary policy. Hence, the Depression did not make Friedman a fan of big government. He also found in the Federal Reserve's failure to prevent deflation an argument in favor of monetary rules. As the world evolved- with low inflation becoming the major mission of central banks and free markets and secure property rights becoming the main policies to promote economic growth-Friedman surely won the intellectual battle.
Robert Barro
Euclidean geometry can be easily visualized; this is the argument adduced for the unique position of Euclidean geometry in mathematics. It has been argued that mathematics is not only a science of implications but that it has to establish preference for one particular axiomatic system. Whereas physics bases this choice on observation and experimentation, i.e., on applicability to reality, mathematics bases it on visualization, the analogue to perception in a theoretical science. Accordingly, mathematicians may work with the non-Euclidean geometries, but in contrast to Euclidean geometry, which is said to be "intuitively understood," these systems consist of nothing but "logical relations" or "artificial manifolds". They belong to the field of analytic geometry, the study of manifolds and equations between variables, but not to geometry in the real sense which has a visual significance.
Hans Reichenbach
I am presently at work on a dissertation dealing with the theory of international trade and foreign exchange rates. In dealing with this, studies of the intervention of recent years in the area of trade and exchange rates of different countries is of the greatest importance. I therefore hope to be able to begin a six month study tour to Switzerland, France and England at the end of May this year. After having collected the necessary material I intend - if the economic side can be arranged - during a stay of 6–12 months in England (probably Cambridge) or possibly the United States (in that case probably Harvard University) - to work out the above mentioned dissertation as a specimen for the doctoral degree in philosophy and pursue studies in general. I have not yet any detailed study plan. That should appropriately be set up after the arrival.
Bertil Ohlin
We cannot suppose that an individual's thinking survives bodily death, since that destroys the organization of the brain and dissipates the energy which utilized the brain tracks. God and immortality, the central dogma of the Christian religion, find no support in science. But we in the West have come to think of them as the irreducible minimum of theology. No doubt people will continue to entertain these beliefs, because they are pleasant, just as it is pleasant to think ourselves virtuous and our enemies wicked. But for my part I cannot see any grounds for either. I do not pretend to be able to prove that there is no God. I equally cannot prove Satan is a fiction. The Christian God may exist, so might the Gods of Olympus, Ancient Egypt or Babylon; but no one of these hypotheses is more probable than any other. They lie outside the region of provable knowledge and there is no reason to consider any of them.
Bertrand Russell
