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theory
Frankly, these days, without a theory to go with it, I can't see painting. M. Wolfe
theory-of-evolution creation-science evolution-of-man
If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down. But I can find no such case. Charles Darwin
theory-of-evolution facts peculiar
The fact of evolution is the backbone of biology, and biology is thus in the peculiar position of being a science founded on an improved theory, is it then a science or faith?
theory precision unified
A unified theory would put us at the doorstep of a vast universe of things that we could finally explore with precision. Brian Greene
theory therefore trivial
If string theory is a mistake, it's not a trivial mistake. It's a deep mistake and therefore kind of worthy. Lee Smolin
theory
The oldest theory of contract is I think negative.
theory convinced universal
Classical thermodynamics ... is the only physical theory of universal content which I am convinced ... will never be overthrown. Albert Einstein
theory conclusion ifs
The truth of a theory can never be proven, for one never knows if future experience will contradict its conclusions.
theory practicals solutions
The most practical solution is a good theory.
observation evidence believable
Extraordinary observations require extraordinary evidence to make them believable. Carl Sagan
observation acquire
Those who cannot themselves observe can at least acquire the observation of others. Benjamin Disraeli
observation disagree disagreeable
Whether in families or in politics, a good observation: "One can disagree without being disagreeable." Barry Goldwater
observation
But I make the observation that no one of us would do things exactly alike. David Dinkins
observation truism commonplace
Every commonplace or trite observation is not a truism. Charles Lamb
observation teach shows
In the philosophic sense, observation shows and experiment teaches. Claude Bernard
observation passive active
Obervation is a passive science, experimentation is an active science.
observation observers
Observe, and in that observation there is neither the "observer" nor the "observed" - there is only observation taking place. Jiddu Krishnamurti
observation finished ifs
If a writer stops observing, he is finished. Ernest Hemingway