“If most of us are ashamed of shabby clothes and shoddy furniture, let us be more ashamed of shabby ideas and shoddy philosophies”
Attributed to Einstein in Treasury of the Christian Faith https://books.google.com/books?id=Ll4wAAAAYAAJ&q=%22shabby+clothes%22+%22shoddy+furniture%22&dq=%22shabby+clothes%22+%22shoddy+furniture%22&hl=en&sa=X&ved=0ahUKEwiS04TynqDLAhUO8GMKHUYICMkQ6AEINTAA (1949), and subsequently repeated in other books. No original source where Einstein supposedly said this has been located, and it is absent from authoritative sources such as Calaprice, The Ultimate Quotable Einstein.
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Albert Einstein 702
German-born physicist and founder of the theory of relativi… 1879–1955Related quotes

“We but half express ourselves, and are ashamed of that divine idea which each of us represents.”
1840s, Essays: First Series (1841), Self-Reliance

I'm a Stranger Here Myself (US), Notes From a Big Country (UK) (1998)

"The Diamond As Big As The Ritz"
Quoted, Tales of the Jazz Age (1922)

Excellence: Can We Be Equal and Excellent Too? (1961).