Falsificationist Quotes

The confirmations of novel predictions resulting from bold conjectures are very important in the falsificationist account of the growth of science. (Alan Chalmers)
Establishing by observation that there is just one black swan falsifies "all swans are white". This is an unexceptional and undeniable point. However, using it as grounds to support a falsificationist philosophy of science is not as straightforward as it might seem. View quote
Alan Chalmers
For the sophisticated falsificationist a scientific theory T is falsified if and only if another theory T' has been proposed with the following characteristics : (1) T' has excess empirical content over T: that is, it predicts novel facts, that is, facts improbable in the light of, or even forbidden, by T; (2) T' explains the previous success of T, that is, all the unrefuted content of T is included (within the limits of observable error) in the content of T'; and (3) some of the excess content of T' is corroborated. View quote
Imre Lakatos