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2847 E Yogi Berra In theory, there is no difference between theory and practice. But, in practice, there is.
Theory
Teoria
12573 E Hans Jonas Modern theory is about objects lower than man; even stars, being common things, are lower than man.
Theory
Teoria
4337 E Albert Einstein Theory is when we know everything but nothing works. Praxis is when everything works but we do not know why. We always end up by combining theory with praxis: nothing works and we do not know why.
Theory
Teoria
5865 E Kurt Lewin There is nothing so practical as a good theory.
Theory
Teoria
3219 E Arthur Conan Doyle It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
Theory
Teoria