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- Truth is eternal, knowledge is changeable. It is disastrous to confuse them.
- Madeleine L'Engle (1918 - ), An Acceptable Time
- The engineer is the key figure in the material progress of the world. It is his engineering that makes a reality of the potential value of science by translating scientific knowledge into tools, resources, energy and labor to bring them into the service of man ... To make contributions of this kind the engineer requires the imagination to visualize the needs of society and to appreciate what is possible as well as the technological and broad social age understanding to bring his vision to reality.
- Sir Eric Ashby
- Engineering is not merely knowing and being knowledgeable, like a walking encyclopedia; engineering is not merely analysis; engineering is not merely the possession of the capacity to get elegant solutions to non-existent engineering problems; engineering is practicing the art of the organized forcing of technological change... Engineers operate at the interface between science and society...
- Dean Gordon Brown
- The ideal engineer is a composite ... He is not a scientist, he is not a mathematician, he is not a sociologist or a writer; but he may use the knowledge and techniques of any or all of these disciplines in solving engineering problems.
- N. W. Dougherty, 1955
- Science is organized knowledge.
- Herbert Spencer (1820 - 1903)
- I ask you to look both ways. For the road to a knowledge of the stars leads through the atom; and important knowledge of the atom has been reached through the stars.
- Sir Arthur Eddington (1882 - 1944), Stars and Atoms (1928), Lecture 1
- For the truth of the conclusions of physical science, observation is the supreme Court of Appeal. It does not follow that every item which we confidently accept as physical knowledge has actually been certified by the Court; our confidence is that it would be certified by the Court if it were submitted. But it does follow that every item of physical knowledge is of a form which might be submitted to the Court. It must be such that we can specify (although it may be impracticable to carry out) an observational procedure which would decide whether it is true or not. Clearly a statement cannot be tested by observation unless it is an assertion about the results of observation. Every item of physical knowledge must therefore be an assertion of what has been or would be the result of carrying out a specified observational procedure.
- Sir Arthur Eddington (1882 - 1944), The Philosophy of Physical Science
- Not to know what has been transacted in former times is to be always a child. If no use is made of the labors of past ages, the world must remain always in the infancy of knowledge.
- Cicero (106 BC - 43 BC)
- We must, however, acknowledge as it seems to me, that a man with all his noble qualities...still bears in his bodily frame the indelible stamp of his lowly origin.
- Charles Darwin (1809 - 1882)
- That there should one Man die ignorant who had capacity for Knowledge, this I call a tragedy.
- Thomas Carlyle (1795 - 1881)
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