We know too much and feel too little.

Man is the product of causes which had no prevision of the end they were achieving; his origin, his growth, his hopes and fears, his loves and beliefs, are but the outcome of accidental collocations of atoms; no fire, no heroism, no intensity of though and feeling, can preserve an individual life beyond the grave.

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

The legacy of Greece to Western philosophy is Western philosophy.

Sir Arthur Eddington deduces religion from the fact that atoms do not obey the laws of mathematics. Sir James Jeans deduces it from the fact that they do.

Affection cannot be created; it can only be liberated.

Next to worry probably one of the most potent causes of unhappiness is envy.