Quote by Sinclair Lewis
"The greatest discovery of my generation is that human beings can alter their lives by altering their thinking."
More from Sinclair Lewis
"It is the nature of progress that it makes the past seem wrong."
"Don't you dare take the lazy approach and accept things as they are."
"Sincere faith is the best intellect, and the best intellect is a faith in the nobility of human nature."
"Every compulsion is put upon us by other people, hardly by ourselves."