[To] interpret Parmenides as a Kant before Kant ... this is exactly what we must do.

Better our hypotheses die for our errors than ourselves.

Our belief in any particular natural law cannot have a safer basis than our unsuccessful critical attempts to refute it.

The growth of knowledge depends entirely upon disagreement.

There can be no ultimate statements science: there can be no statements in science which can not be tested, and therefore none which cannot in principle be refuted, by falsifying some of the conclusions which can be deduced from them.

We have become makers of our fate when we have ceased to pose as its prophets.

What really makes science grow is new ideas, including false ideas.