The vast material displacements the machine has made in our physical environment are perhaps in the long run less important than its spiritual contributions to our culture.

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

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

It was Stieglitz's endeavor... to translate the unseen world of tactile values as they develop between lovers not merely into the sexual act but the entire relation of two personalities - to translate this world of blind touch into sight.

Only when love takes the lead will the earth, and life on earth, be safe again. And not until then.

A picture was once a rare sort of symbol, rare enough to call for attentive concentration. Now it is the actual experience that is rare, and the picture has become ubiquitous.

Humor is our way of defending ourselves from life's absurdities by thinking absurdly about them.