In nature, there is perhaps nothing older than motion.
In rerum natura nullum forte est antiquius motu.

Scientists
Galileo Galilei
Italian natural philosopher born in 1564. His telescopic discoveries and falling-body experiments replaced Aristotelian speculation with observation and mathematical formulation.
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Galileo Galilei's Other Quotes
Measure what is measurable, and make measurable what is not so.
All truths are easy to understand once they are discovered; the point is to discover them.
I do not feel obliged to believe that the same God who has endowed us with senses, reason, and intellect has intended us to forgo their use.
Philosophy is written in this grand book, the universe, which stands continually open to our gaze. But the book cannot be understood unless one first learns to comprehend the language and read the letters in which it is composed. It is written in the language of mathematics.