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Karl Popper

"No rational argument will have a rational effect on a man who does not want to adopt a rational attitude."

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"No rational argument will have a rational effect on a man who does not want to adopt a rational attitude."

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Donna Grant

"Guard yourself with a positive attitude, conviction, hope and fulfillment of your heart's desire."

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Donna Grant

"Attitude is the most beautiful expression of a positive life."

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Donna Grant

"If misery loves company, misery has company enough."

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Donna Grant

"My sense of misadventure took over and I began looking at my problems as challenges."

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Donna Grant

"A positive attitude will help fortify your courage to build unshakable confidence and healthy self-esteem."

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Donna Grant

"Nobody can bring you peace but yourself."

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Donna Grant

"It's a question of attitude. If you really work at something you can do it up to a point. If you really work at being happy you can do it up to a point. But anything more than that you can't. Anything more than that is luck."

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Donna Grant

"A positive attitude will help you edge out cynicism and pessimism to restore hope and optimism."

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Donna Grant

"The quality of your life hinges on your attitudes and offerings."

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Donna Grant

"This time, like all times, is a very good one, if we but know what to do with it."

Explore more quotes by Karl Popper

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Karl Popper
"There is no history of mankind, there are only many histories of all kinds of aspects of human life. And one of these is the history of political power. This is elevated into the history of the world."
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Karl Popper
"No rational argument will have a rational effect on a man who does not want to adopt a rational attitude."
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Karl Popper
"Good tests kill flawed theories; we remain alive to guess again."
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Karl Popper
"Our knowledge can only be finite, while our ignorance must necessarily be infinite."
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Karl Popper
"Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve."
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Karl Popper
"We must plan for freedom, and not only for security, if for no other reason than that only freedom can make security secure."
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Karl Popper
"Science may be described as the art of systematic over-simplification."
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Karl Popper
"Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of technology."
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Karl Popper
"Those who promise us paradise on earth never produced anything but a hell."
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Karl Popper
"In so far as a scientific statement speaks about reality, it must be falsifiable; and in so far as it is not falsifiable, it does not speak about reality."
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