I remained a socialist for several years, even after my rejection of Marxism; and if there could be such a thing as socialism combined with individual liberty, I would be a socialist still. For nothing could be better than living a modest, simple, and free life in an egalitarian society.

No number of sightings of white swans can prove the theory that all swans are white. The sighting of just one black one may disprove it.

A theory is just a mathematical model to describe the observations.

Propose theories which can be criticized. Think about possible decisive falsifying experiments-crucial experiments. But do not give up your theories too easily-not, at any rate, before you have critically examined your criticism.

I personally call the type of government which can be removed without violence 'democracy,' and the other, 'tyranny.'.

The quest for precision is analogous to the quest for certainty and both - precision and certainty are impossible to attain.

Thus science must begin with myths, and with the criticism of myths; neither with the collection of observations, nor with the invention of experiments, but with the critical discussion of myths, and of magical techniques and practices.