Love is something far more than desire for sexual intercourse; it is the principal means of escape from the loneliness which afflicts most men and women throughout the greater part of their lives.

Analytic It is clear that the definition of "logic" or "mathematics" must be sought by trying to give a new definition of the old notion of "analytic" propositions.

America remained a land of promise for lovers of freedom. Even Byron, at a moment when he was disgusted with Napoleon for not committing suicide, wrote an eloquent stanza in praise of Washington.

I am not myself in any degree ashamed of having changed my opinions.

The desire to understand the world and the desire to reform it are the two great engines of progress, without which human society would stand still or retrogress.

Men who allow their love of power to give them a distorted view of the world are to be found in every asylum: one man will think he is the Governor of the Bank of England, another will think he is the King, and yet another will think he is God. Highly similar delusions, if expressed by educated men in obscure language, lead to professorships of philosophy; and if expressed by emotional men in eloquent language, lead to dictatorships.

Uncertainty in the pressure of vivid hopes and fears is painful, but must be endured if we wish to live without the support of comforting fairy tales.