Think with your heart not with your brain, and vice versa. I think this common saying used throughout the ages is wrong and impossible both scientifically and biologically. Once you sit down and think about the literal meaning of what you just blurted out it will occur to you that the heart, a cardiac muscle is incapable of thinking. Emotions associated with the heart actually bubble up in the left side of the brain hence the correct thing to say would be think with your brain, period.
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.
Leonardo da Vinci
i. a well-substantiated explanation of some aspect of the natural world; an organized system of accepting knowledge that applies in a variety of circumstances to explain a specific set of phenomena · true in fact and theory
ii. a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena · a scientific hypothesis that survives experimental testing becomes a scientific theory · he proposed a fresh theory of alkalis that later was accepted in chemical practices
syn: hypothesis, possibility
iii. a belief that can guide behavior · the architect has a theory that more is less · they killed him on the theory that dead men tell no tales
ORIGIN: 1592, “conception, mental scheme,” from Greek theoria “contemplation, speculation, a looking at things, things looked at.” That of “an explanation based on observation and reasoning,” first recorded in 1613.
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