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It is sometimes difficult to be inspired when trying to write a persuasive essay, book report or thoughtful research paper. Often of times, it is hard to find words that best describe your ideas. PaperAdepts now provides a database of over 150,000 quotations and proverbs from the famous inventors, philosophers, sportsmen, artists, celebrities, business people, and authors that are aimed to enrich and strengthen your essay, term paper, book report, thesis or research paper.

Try our free search of constantly updated quotations and proverbs database.

QuotationsAuthorsTopicsKeywords
Browse Topics: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
(Click a letter to view the topics)
Letter "T" » Theory
«Einstein explained his theory to me every day, and on my arrival I was fully convinced that he understood it.»
Author: Chaim Weizmann | About: Theory | Keywords: arrival
«Generally, the theories we believe we call facts, and the facts we disbelieve we call theories»
«An ounce of action is worth a ton of theory.»
Author: Friedrich Engels | About: Action, Theory | Keywords: ounce, ton
«If the Confederacy fails, there should be written on its tombstone: Died of a Theory.»
Author: Jefferson Davis | About: Theory | Keywords: confederacies, confederacy, tombstone
«It is a test of true theories not only to account for but to predict phenomena»
Author: William Whewell | About: Theory | Keywords: account for, phenomena, predict, theories
«If the facts don't fit the theory, change the facts.»
«He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.»
«If Darwin's theory should be true, it will not degrade man; it will simply raise the whole animal world into dignity, leaving man as far in advance as he is at present»
«How empty is theory in the presence of fact»
Author: Mark Twain (Humorist, Lecturer, Writer) | About: Theory | Keywords: empty, presence, theory
«First, you know, a new theory is attacked as absurd; then it is admitted to be true, but obvious and insignificant; finally it is seen to be so important that its adversaries claim that they themselves discovered it»

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