Teacher:"Mathematics is a science.A science is beyond all doubt.
for example.one person needs 10 days to build a house.If 10 person
works together they can set up the house just a day." Student:"I
see.A ship need 10 days to cross the Pacific
Ocean.No doubt,according to this reasoning, if 10 ships go together,they
can achieve the magnificient feat of crossing the Pacific Ocean
within a day."
