“All our knowledge has its origins in our perceptions.”
More from Leonardo da Vinci
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“In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time.”
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“Time stays long enough for anyone who will use it.”
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“He who is fixed to a star does not change his mind.”
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“It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things.”
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“Nothing strengthens authority so much as silence.”