Galileo Galilei

Galileo was one of the first modern scientists, because he used the experimental method to find out how the world worked.

Rather than trying to decide whether or not his ideas lined up with philosophy, Galileo made theories about the world and then tested them through doing experiments.

Measure what is measurable,’ he once said, ‘and if something cannot be measured, figure out how it can be.

Taken from: The Story of the World Vol. II