I may be wrong and you may be right, and by an effort, we may get nearer to the truth

The scientific tradition is distinguished from the pre-scientific tradition by having two layers. Like the latter, it passes on its theories; but it also passes on a critical attitude towards them.

We all remember how many religious wars were fought for a religion of love and gentleness; how many bodies were burned alive with the genuinely kind intention of saving souls from the eternal fire of hell.

Now this principle of induction cannot be a purely logical truth like a tautology or an analytic statement. . . .

All we can do is search for the falsity content in our best theory.

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 hate the very idea that our own ideas may be mistaken, so we cling dogmatically to our conjectures.