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

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.

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.

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

I'm raised from gutter to protect another gutter

The only peace that can be made with a dictator is once that must be based on deterrence. For today, the dictator may be your friend, but tomorrow he will need you as an enemy.

I never dated much in high school or college.

My mom was really vigorous about making sure that we saw things and that we questioned things. Education was so important to both of my parents.

Should not the Society of Indexers be known as Indexers, Society of, The?

The whole business starts with ideas, and we're convinced that ideas come out of an environment of supportive conflict, which is synonymous with appropriate friction.

If you don't hire at least one or two people that are smarter than you are, then you're a terrible manager and I don't need you.

I am a tropical black man.

Economic crimes are complex in nature, difficult to untangle, and they must be investigated according to the procedures set by the law.