Indeed, this epistemological theory of the relation between theory and experiment differs sharply from the epistemological theory of naive falsificationism.

Research programmes, besides their negative heuristic, are also characterized by their positive heuristic.

The positive heuristic of the programme saves the scientist from becoming confused by the ocean of anomalies.

Blind commitment to a theory is not an intellectual virtue: it is an intellectual crime.

No experimental result can ever kill a theory: any theory can be saved from counterinstances either by some auxiliary hypothesis or by a suitable reinterpretation of its terms.

Intellectual honesty consists in stating the precise conditions under which one will give up one's belief.

The proving power of the intellect or the senses was questioned by the skeptics more than two thousand years ago; but they were browbeaten into confusion by the glory of Newtonian physics.

Philosophy of science without history of science is empty; history of science without philosophy of science is blind.

There is no falsification before the emergence of a better theory.

In degenerating programmes, however, theories are fabricated only in order to accommodate known facts

Belief may be a regrettably unavoidable biological weakness to be kept under the control of criticism: but commitment is for Popper an outright crime.

You praise man who has the ability to perform great actions.I admire man who can deal with great pain and knows no despair.

Welcome everything that comes to you but do not long for anything else.

I can picture things, like a painter would, though Im not good at painting, either.

A salesman sees a commission.

The whole culture is under terrible pressure and fraught with worry. It's hard to get out of that box. That's the dominant situation all over the world.

Therefore it is essential that some means should be sought whereby the work of the nation may be carried on without constant yet at present necessary dislocation.

I love watching comedies. It's my favorite thing to watch and it always lifts my spirits.

He's become like that briefcase in the ground-full of gems yet void of light, so nothing sparkles, nothing shines.

I believe Moses was 80 when God first commissioned him for public service.

I didn't aim at anything except good music.