The first dogma which I came to disbelieve was that of free will. It seemed to me that all notions of matter were determined by the laws of dynamics ….

Berkeley retains the merit of having shown that the existence of matter is capable of being denied without absurdity..

The human race may well become extinct before the end of the century. Speaking as a mathematician, I should say the odds are about three to one again….

Curious learning not only makes unpleasant things less unpleasant but also makes pleasant things more pleasant..

I have throughout been curious about how much we can be said to know and with what degree of certainty or doubtfulness..

No satisfaction based upon self-deception is solid, and however unpleasant the truth may be, it is better to face it once and for all, to get used to….

There is darkness without and when I die there will be darkness within. There is no splendor, nor vastness anywhere; only triviality for a moment and….

It has been said that man is a rational animal. All my life I have been searching for evidence which could support this..

The luxury to disparage freedom is the privilege of those who already possess it..

There is no logical impossibility in the hypothesis that the world sprang into being five minutes ago, exactly as it then was, with a population that….

Some care is needed in using Descartes' argument. "I think, therefore I am" says rather more than is strictly certain. It might seem as though we are….

It is a natural propensity to attribute misfortune to someone's malignity..

What is new in our time is the increased power of the authorities to enforce their prejudices..

For my part I distrust all generalizations about women, favorable and unfavorable, masculine and feminine, ancient and modern; all alike, I should sa….

There was, I think, never any reason to believe in any innate superiority of the male, except his superior muscle..

I have been merely oppressed by the weariness and tedium and vanity of things lately: nothing stirs me, nothing seems worth doing or worth having don….

The painter has to unlearn the habit of thinking that things seem to have the color which common sense says they 'really' have, and to learn the habi….

Mysticism is, in essence, little more than a certain intensity and depth of feeling in regard to what is believed about the universe..

There is much pleasure to be gained from useless knowledge..

Nothing is so exhausting as indecision, and nothing is so futile..

A stupid man's report of what a clever man says can never be accurate, because he unconsciously translates what he hears into something he can unders….