To dispose first and investigate later is an invitation to disaster, for once radioactive elements have been deposited at sea they are irretrievable.… - Rachel Carson

There are other disturbing factors ... One is the growing interrelations between professional organizations and industry, and between science and industry.

For the sense of smell, almost more than any other, has the power to recall memories and it's a pity we use it so little.

Only a few centuries have passed since those pre-Columbian days, yet today our whole earth has become only another shore from which we look out across the dark ocean of space, uncertain what we shall find when we sail out among the stars, but like the Norsemen and the Polynesians of old, lured by the very challenge of the unknown.