Our national flower is the concrete cloverleaf.

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

Safety razors make it hard to grow beards in America: America would be a better place if there were a few bearded, savage, terrible old men.

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...

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

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

One's worst enormities remain within, and it is only one's vulgar commonplaces of error and folly that turn into murders and suicides, treasons, infidelities, and betrayals.