From which we derive that π (pi) is equal to 3, exactly.
I think that is a silly reading of the verses in question. Is the cup exactly circular? Are the measurements precise? When I read the verse I see that all of the measurements are expressed to one significant figure only. To that level of accuracy, the circumference of a perfectly circular cup having a diameter of 10 would be expressed as 30 and not 31.45926535 or similar.
Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
The apathy of the people is enough to make every statue leap from its pedestal and hasten the resurrection of the dead. William Lloyd Garrison.
If there is no struggle, there is no progress. Those who profess to favor freedom, and deprecate agitation, are men who want crops without plowing up the ground, they want rain without thunder and lightning. Frederick Douglass