Changes

…it is through sensations that you learn: by seeing, observing, hearing. Classes develop your sensations, studies develop your sensations, the mind receives things through sensations. By the education of the senses the growth of one's general education is aided; if you learn to see well, exactly, precisely; if you learn to hear well; if you learn through touch to know the nature of things; if you learn through the see sense of smell to distinguish between different odours—all these are a powerful means of education. In fact, they should be used for this, as instruments of observation, control and knowledge. If one is sufficiently developed, one can know the nature of things through sight; through the see sense of smell one may also know the value, the different nature of things; by touch one can recognise things… <ref>http://incarnateword.in/cwm/06/31-march-1954#p13</ref>