" ปัญหาในทางปฎิบัติ วิทยาศาสตร์ ปรัชญา และศิลปะทำให้มนุษย์ศึกษา วินิจฉัย คณิตศาสตร์ แต่ยังมีแรงจูงใจที่สำคัญอีกอย่างไม่แพ้สิ่งข้างต้นที่ทำให้มนุษย์สนใจคณิตศาสตร์ นั่นก็คือ การค้นหาความงามของคณิตศาสตร์ คณิตศาสตร์เป็นศิลปะ ที่สร้างความสำราญใจเฉกเช่นเดียวกับศิลปะอื่นๆ"

-Morris Kline

Morris Kline (May 1, 1908 – June 10, 1992) was a Professor of Mathematics, a writer on the history, philosophy, and teaching of mathematics, and also a popularizer of mathematical subjects.

Kline grew up in Brooklyn and in Jamaica, Queens. After graduating from Boys High School in Brooklyn, he studied mathematics at New York University, earning a bachelor's degree in 1930, a master's degree in 1932, and a doctorate in 1936. He continued at NYU as an instructor until 1942.

During World War II, Kline was posted to the Signal Corps (United States Army) stationed at Belmar, New Jersey. Designated a physicist, he worked in the engineering lab where RADAR was developed. After the war he continued investigating electromagnetism, and from 1946 to 1966 was director of the division for electromagnetic research at the Courant Institute of Mathematical Sciences.

Kline resumed his mathematical teaching at NYU, becoming a full professor in 1952. He taught at New York University until 1975, and wrote many papers and more than a dozen books on various aspects of mathematics and particularly mathematics teaching. He repeatedly stressed the need to teach the applications and usefulness of mathematics rather than expecting students to enjoy it for its own sake. Similarly, he urged that mathematical research concentrate on solving problems posed in other fields rather than building structures of interest only to other mathematicians. One can get a sense of Kline's views on teaching from the following:

I would urge every teacher to become an actor. His classroom technique must be enlivened by every device used in theatre. He can be and should be dramatic where appropriate. He must not only have facts but fire. He can utilize even eccentricities of behavior to stir up human interest. He should not be afraid of humor and should use it freely. Even an irrelevant joke or story perks up the class enormously.

-Introduction to Mathematics (with Irvin W. Kay), Houghton Mifflin, 1937
-The Theory of Electromagnetic Waves (ed), Inter-science Publishers, 1951
-Mathematics in Western Culture, Oxford University Press,1953
-Mathematics and the Physical World, T. Y. Crowell Co., 1959
-Mathematics, A Cultural Approach, Addison-Wesley, 1962
-Electromagnetic Theory and Geometrical Optics (with Irvin W. Kay), John Wiley and Sons, 1965
-Calculus, An intuitive and Physical Approach, John Wiley and Sons, 1967, 1977, Dover Publications 1998 reprint ISBN 0-486-40453-6
-Mathematics for Liberal Arts, Addison-Wesley, 1967, (republished as Mathematics for the Nonmathematician, Dover Publications, Inc., 1985) (ISBN 0-486-24823-2)
-Mathematics in the Modern World (ed), W. H. Freeman and Co., 1968
-Mathematical Thought From Ancient to Modern Times, Oxford University Press, 1972
-Why Johnny Can't Add: The Failure of the New Mathematics, St. Martin's Press, 1973
-Why the professor can't teach: Mathematics and the dilemma of university education, St. Martin's Press, 1977 (ISBN 0-312-87867-2)
-Mathematics: The Loss of Certainty, Oxford University Press, 1980 (ISBN 0-19-502754-X); OUP Galaxy Books pb. reprint (ISBN 0-19-503085-0)
-Mathematics: An Introduction to Its Spirit and Use; readings from Scientific American
-Mathematics in the Modern World; readings from Scientific American
-The Language of Shapes (with Abraham Wolf Crown)
-Mathematics and the Search for Knowledge

//en.wikipedia.org/wiki/Morris_Kline