1.
S₁: Science means finding out how things actually do happen.
S₆: But Galileo proved his point experimentally by dropping weights from the Leaning Tower of Pisa.

P: He showed that a light object falls to the ground at the same rate as a heavy object.
Q: It does not mean laying down principles as to how they ought to happen.
R: This did not agree with the views of most learned men of that time.
S: The most famous example of this concerns Galileo's discovery about falling bodies.