Accommodation to change, the thoughtful pursuit of alternative futures are keys to the survival of civilization and perhaps of the human species.

If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.

If you want to make a [rhubarb] pie from scratch, first you have to create the universe.

The claim is also sometimes made that science is as arbitrary or irrational as all other claims to knowledge, or that reason itself is an illusion. As Ethan Allen said Those who invalidate reason ought seriously to consider whether they argue against reason with or without reason; if with reason, then they establish the principle that they are labouring to dethrone. If they argue without reason, which they must do, in order to be consistent with themselves, they are out of reach of rational conviction, nor do they deserve a rational argument.

We wish to find the truth, no matter where it lies. But to find the truth we need imagination and skepticism both. We will not be afraid to speculate, but we will be careful to distinguish speculation from fact.

There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.

The candle flame gutters. Its little pool of light trembles. Darkness gathers. The demons begin to stir.