31. Popper also wrote extensively against the famous Copenhagen interpretation of quantum mechanics.32. Popper writes, " I approached the problem of induction through Hume.33. Popper finds virtue in metaphysics, required to develop new scientific theories.34. Psychologists such as Hans Eysenck and philosophers including Karl Popper criticized psychoanalysis. 35. Popper proposed falsifiability as an important criterion in distinguishing science from pseudoscience.36. This prediction was particularly striking to Popper because it involved considerable risk. 37. Popper was a professional educator himself before he started to do philosophy.38. Popper argued that the central property of science is falsifiability.39. He stated, " I out myself as a user of poppers . 40. Poliovirus was first isolated in 1909 by Karl Landsteiner and Erwin Popper .
