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<blockquote><a href="http://quotationsbook.com/quote/35119/">Science knows only one commandment -- contribute to science.</a></blockquote><br> <a href="http://quotationsbook.com/quotes/author/958/">Brecht, Bertolt</a> on <a href="http://quotationsbook.com/quotes/tag/science/">science</a><br> Quote from <a href="http://quotationsbook.com">Quotations Book</a>