Science is, in the best and strictest sense, glorious entertainment

A culture may be conceived as a network of beliefs and purposes in which any string in the net pulls and is pulled by the others,thus perpetually changing the configuration of the whole. If the cultural element called morals takes on a new shape, we must ask what other strings have pulled it out of line. It cannot be one solitary string, nor even the strings nearby, for the network is three-dimensional at least.

Of course, clothing fashions have always been impractical, except in Tahiti.

Machines are admirable and tyrannize only with the user's consent. Where, then, is the enemy? Not where the machine gives relief from drudgery but where human judgment abdicates. The smoothest machine-made product of the age is the organization man, for even the best organizing principle tends to corrupt, and the mechanical principle corrupts absolutely.

After being boxed in by man and his constructions in Europe and the East, the release into space is exhilarating. The horizon is a huge remote circle, and no hills intervene.

You never step in the same river of thought twice, because neither you nor it are the same.

Since in every European country between 1870 and 1914 there was a war party demanding armaments, an individualist party demanding ruthless competition, an imperialist party demanding a free hand over backward peoples, a socialist party demanding the conquest of power and a racialist party demanding internal purges against aliens - all of them, when appeals to greed and glory failed, invoked Spencer and Darwin, which was to say science incarnate.