Rene Dubos

Human life implies adventure and there is no adventure without struggles and dangers.

The most important pathological effects of pollution are extremely delayed and indirect.

Human diversity makes tolerance more than a virtue it makes it a requirement for survival.

Man shapes himself through decisions that shape his environment.

More can be learned from what works than from what fails.

To a surprising extent, modern man has retained unaltered the bodily constitution, physical responses, and emotional drives which he has inherited from his ancestors. Yet he lives in a mechanized, air-conditioned, and regimented world radically different from the one in which he evolved.