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

Genuine [economic] value lies in the power to sustain or enrich life

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...

The great city is the best organ of memory man has yet created.

The humanities and science are not in inherent conflict but have become separated in the twentieth century. Now their essential unity must be re-emphasized, so that twentieth-century multiplicity may become twentieth-century unity.

The mind reproduces itself by transmitting its symbols to other intermediaries, human and mechanical, than the particular brain that first assembled them.

Trend is not destiny.