The famous balance of nature is the most extraordinary of all cybernetic systems. Left to itself, it is always self-regulated.

Both the cockroach and the bird would get along very well without us, although the cockroach would miss us most.

The rare moment is not the moment when there is something worth looking at, but the moment when we are capable of seeing.

The most serious charge which can be brought against New England is not Puritanism, but February.... Spring is too far away to comfort even by anticipation, and winter long ago lost the charm of novelty. This is the very three a.m. of the calendar.

To those who study her, Nature reveals herself as extraordinarily fertile and ingenious in devising means, but she has no ends which the human mind has been able to discover or comprehend.

If people destroy something replaceable made by mankind, they are called vandals; if they destroy something irreplaceable made by God, they are called developers.

We must not judge the society of the future by considering whether or not we should like to live in it; the question is whether those who have grown up in it will be happier than those who have grown up in our society or those of the past.