The Future Is Always Present, As A

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.

The Game Of Science Is, In Principle, Without End. He Who Decides One Day That Scientific Statements Do Not Call For Any Further Test, And That They Can Be Regarded As Finally Verified, Retires From The Game.

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.

In Point Of Fact, No Conclusive Disproof Of A Theory Can Ever Be Produced; For It Is Always Possible To Say That The Experimental Results Are Not Reliable Or That The Discrepancies Which Are Asserted To Exist Between The Experimental Results And The Theory Are Only Apparent And That They Will Disappear With The Advance Of Our Understanding. If You Insist On Strict Proof (or Strict Disproof) In The Empirical Sciences, You Will Never Benefit From Experience, And Never Learn From It How Wrong You Are.

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