Maturity of mind is the capacity to endure uncertainty.

Uncertainty is the only certainty there is, and knowing how to live with insecurity is the only security.

Largely because of the hunkering down related to this Iraq uncertainty,

Real frontier-busting math explores new worlds, ... If you can communicate that experience, somewhere between math and uncertainty, life experience provides the balance.

Education is the process by which the individual relates himself to the universe, give himself citizenship in the changing world, share's the race's mind and enfranchises his own soul.

The uncertainty is petrol prices,