Do you want to know what I most regret about my youth? That I didn't dream more boldly and demand of myself more impossible things; for all one does in maturity is to carve in granite or porphyry the soap bubble one blew in youth! Oh to have dreamed harder!

Utopias rest on the fallacy that perfection is a legitimate goal of human existence.

Restore human legs as a means of travel. Pedestrians rely on food for fuel and need no special parking facilities.

A man of courage never needs weapons, but he may need bail.

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

He who touches the soil of Manhattan and the pavement of New York, touches, whenever he knows or not, Walt Whitman.

To the extent that the scientist's capacity for pursuing the truth depends upon costly apparatus, institutional collaboration and heavy capital investment by government or industry he is no longer his own master.