Wilhelm Ostwald Quotes
In the first quarter of the nineteenth century the experimental proof for the interdependence of the composition and properties of chemical compounds resulted in the theory that they are mutually related, so that like composition governs like properties, and conversely.

Quotes to Explore
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In theory there is no difference between theory and practice. In practice there is.
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We have confirmed something we only knew in theory, namely that revolution, in which uncontrolled and uncontrollable forces operate imperiously, is blind and destructive, grandiose and cruel.
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Even for practical purposes theory generally turns out the most important thing in the end.
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Semiotics is a general theory of all existing languages... all forms of communication - visual, tactile, and so on... There is general semiotics, which is a philosophical approach to this field, and then there are many specific semiotics.
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Many, many, many small moves of many kinds can bring a way to manage change. The theory can come later.
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You cannot run a business, or anything else, on a theory.
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If you are different, or you have minimum possibilities, you can still succeed. I am living proof of that.
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The evolutionary theory of senescence can be stated as follows: while bodies are not designed to fail, neither are they designed for extended operation.
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I'm a bit of a romantic. In theory!
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I was pretty lucky to get into Berklee at all. I never really had any theory or music-reading capabilities; I was completely by ear.
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Chemical weapons are something that scares everybody.
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I have a theory that self-made, first-generation actresses don't feel entitled to success.
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...Stevens does not think of inspiration (or whatever you want to call it) as a condition of composition. He too is waiting for the spark from heaven to fall-poets have no choice about this-but he waits writing; and this-other things being equal, when it’s possible, if it’s possible-is the best way for a poet to wait.
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The most beautiful fate of a physical theory is to point the way to the establishment of a more inclusive theory, in which it lives on as a limiting case.
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Fundamental ideas play the most essential role in forming a physical theory. Books on physics are full of complicated mathematical formulae. But thought and ideas, not formulae, are the beginning of every physical theory. The ideas must later take the mathematical form of a quantitative theory, to make possible the comparison with experiment.
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Then I would have felt sorry for the dear Lord. The theory is correct.
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You don't just go to the studio and say, 'I'm going to write a hit.' It becomes a hit when people like your compositions.
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The theory of our modern technic shows that nothing is as practical as theory.
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The theory of the lung as a gland has justified its existence and done excellent service in bringing forward facts, which shall survive any theoretical construction that has been or may hereafter be put upon them.
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You can't stand in front of people and say, 'We want your vote,' and not tell people what it is they're voting for. We all know that staying the course is not a strategy that's going to work.
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It's like breathing in and out to me. It's like having a conversation with someone who isn't there. Because it has to be addressed to somebody - not a particular person, or very rarely.
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He was a hopeless coward and gambled so heavily it was a sheer miracle as how to he still wasn't thrown out into the street for being disorderly or being arrested for drunk driving.
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No army can withstand the strength of an idea whose time has come.
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In the first quarter of the nineteenth century the experimental proof for the interdependence of the composition and properties of chemical compounds resulted in the theory that they are mutually related, so that like composition governs like properties, and conversely.