It Is Impossible To Speak In Such

But It Is Certainly Not Possible To Insist On One Hand That The Formalism Is Complete And To Insist On The Other Hand That Its Application To 'the Actual' Actually Demands A Step Which Cannot Be Derived From It.

Every Genuine Test Of A Theory Is An Attempt To Falsify It, Or To Refute It.

A Rationalist Is Simply Someone For Whom It Is More Important To Learn Than To Be Proved Right; Someone Who Is Willing To Learn From Others - Not By Simply Taking Over Another's Opinions, But By Gladly Allowing Others To Criticize His Ideas And By Gladly Criticizing The Ideas Of Others

Genuine Philosophical Problems Are Always Rooted Outside Philosophy And They Die If These Roots Decay.

A Theory That Explains Everything, Explains Nothing