Quote by Galileo Galilei: “Measure what is measurable and make measurable what is not.”

Science advances by turning vague impressions into precise quantities. First, measure what you already can. Then, develop the tools and methods to measure what currently seems impossible to quantify. This is a programme for how to extend human knowledge — step by careful step.

Galileo worked in Padua and Florence during the early seventeenth century, developing a quantitative approach to physics that broke sharply with the qualitative Aristotelian tradition. His conflict with the Inquisition, which forced him to recant the heliocentric theory in 1633, became emblematic of science's struggle against authority.

Italian astronomer, physicist, and mathematician whose observations with the telescope and mathematical analysis of motion laid the foundations of modern science. His support of the Copernican heliocentric model brought him into direct conflict with the Catholic Inquisition.