Neither democracy nor effective representation is possible until each participant in the group...devotes a measurable part of his life to furthering its existence.

Every transformation of humanity has rested upon deep stirrings and intuitions, whose rationalized expression takes the form of a new picture of the cosmos and the nature of the human.

This metropolitan world, then, is a world where flesh and blood is less real than paper and ink and celluloid.

The chief enemy of peace is the spirit of unreason itself: an inability to conceive alternatives, an unwillingness to reconsider old prejudices, to part with ideological obsessions, to entertain new ideas or to improve new plans.

Life is the only art that we are required to practice without preparation, and without being allowed the preliminary trials, the failures and botches, that are essential for the training...

Traditionalists are pessimists about the future and optimists about the past.

In our entrancement with the motorcar, we have forgotten how much more efficient and how much more flexible the footwalker is.