Throughout History, Human Exploitation Of The Earth

(technology Reliability) X (human Reliability) = (system Reliability)

Numeracy: 1. The Art Of Putting Numbers To Things, That Is, Assigning Amounts To Variables In Order That Practical Decisions May Be Reach. 2. That Aspect Of Education (beyond Mere Literacy) Which Takes Account Of Quantitative Aspects Of Reality.

The Rational Man Finds That His Share Of The Cost Of The Wastes He Discharges Into The Commons Is Less Than The Cost Of Purifying His Wastes Before Releasing Them.

There Is Nothing More Dangerous Than A Shallow Thinking Compassionate Person

Freedom In A Commons Brings Ruin To All.