Max Planck — "The freedom of thought and speech must be preserved in all circumstances."
The freedom of thought and speech must be preserved in all circumstances.
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More from Max Planck
"There is no matter as such. All matter originates and exists only by virtue of a force."
"The true pioneer is a man who, if necessary, is prepared to go into the wilderness alone, without anyone following him."
"The world of sense experience is not the only world."
"We have no right to assume that any physical laws exist, or if they have existed up to now, that they will continue to exist in a similar manner in the future."
"The value of a man is not in what he acquires but in what he develops."
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