Albert Einstein: " i know only two things that are unlimited, the first is the universe, the other is mans stupidity, and the first i am not certain of".
J.T Kent: "every ignorant man/woman thinks that what he/she knows, is the end of knowledge".
Nietzhe: "every man/woman, creates his/her own world".
Remedy for rigidity, Granite 1M, suitable to use for "cl assicals".