We Do Not Know. We Can Only

It Is Complete Nihilism To Propose Laying Down Arms In A World Where Atom Bombs Are Around. It Is Very Simple: There Is No Way Of Achieving Peace Other Than With Weapons.

No Number Of Sightings Of White Swans Can Prove The Theory That All Swans Are White. The Sighting Of Just One Black One May Disprove It.

The Growth Of Our Knowledge Is The Result Of A Process Closely Resembling What Darwin Called 'natural Selection'; That Is, The Natural Selection Of Hypotheses: Our Knowledge Consists, At Every Moment, Of Those Hypotheses Which Have Shown Their (comparative) Fitness By Surviving So Far In Their Struggle For Existence, A Competitive Struggle Which Eliminates Those Hypotheses Which Are Unfit.

Whenever A Theory Appears To You As The Only Possible One, Take This As A Sign That You Have Neither Understood The Theory Nor The Problem Which It Was Intended To Solve.

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.