What Really Makes Science Grow Is New

Piecemeal Social Engineering Resembles Physical Engineering In Regarding The Ends As Beyond The Province Of Technology.

Now This Principle Of Induction Cannot Be A Purely Logical Truth Like A Tautology Or An Analytic Statement. . . .

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.

No Matter How Many Instances Of White Swans We May Have Observed, This Does Not Justify The Conclusion That All Swans Are White.

The Metaphysical Doctrine Of Determinism Simply Asserts That All Events In This World Are Fixed, Or Unalterable, Or Predetermined. It Does Not Assert That They Are Known To Anybody, Or Predictable By Scientific Means. But It Asserts That The Future Is As Little Changeable As Is The Past. Everybody Knows What We Mean When We Say That The Past Cannot Be Changed. It Is In Precisely The Same Sense That The Future Cannot Be Changed, According To Metaphysical Determinism.