Every Genuine Test Of A Theory Is

It Is Not Possible To Write Clearly Enough To Avoid Being Misrepresented By People Who Are Sufficiently Determined To Do So.

What Really Makes Science Grow Is New Ideas, Including False Ideas.

I Have Insisted That We Must Be Tolerant. But I Also Believe That This Tolerance Has Its Limits. We Must Not Trust Those Anti-humanitarian Religions Which Not Only Preach Destruction But Act Accordingly. For If We Tolerate Them, Then We Become Ourselves Responsible For For Their Deeds.

It Is Not His Possession Of Knowledge, Of Irrefutable Truth, That Makes The Man Of Science, But His Persistent And Recklessly Critical Quest For Truth.

It Must Be Possible For An Empirical System To Be Refuted By Experience.