Orchids were not made by an ideal engineer; they are jury-rigged from a limited set of available components.

Sigmund Freud often remarked that great revolutions in the history of science have but one common, and ironic, feature: they knock human arrogance off one pedestal after another of our previous conviction about our own self-importance.

If genius has any common denominator, I would propose breadth of interest and the ability to construct fruitful analogies between fields.

The proof of evolution lies in those adaptations that arise from improbable foundations.

God was there when it happened. We were not there.... Therefore, we are completely limited to what God has seen fit to tell us, and this information is in His written Word.

Few tragedies can be more extensive than the stunting of life, few injustices deeper than the denial of an opportunity to strive or even to hope, by a limit imposed from without, but falsely identified as lying within.

Human life is the result of a glorious evolutionary accident.