“The Master said, “A true gentleman is one who has set his heart upon the Way. A fellow who is ashamed merely of shabby clothing or modest meals is not even worth conversing with.”
(Analects 4.9)”
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Confucius 269
Chinese teacher, editor, politician, and philosopher -551–-479 BCRelated quotes

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.
Disputed

Riyadh-as-Saliheen by Imam Al-Nawawi, volume 4, hadith number 612
Sunni Hadith

Commentary on Mishlei 23:30, as cited in "Separation from the Worldly (Perishut)" http://etzion.org.il/en/separation-worldly-perishut