Fundamentalism is rigorously and systematically used to indoctrinate and subjugate young minds. It is a contraceptive designed to prevent intellectual fertilization.

Precise adaptation, with each part finely honed to perform a definite function in an optimal way, can only lead to blind alleys, dead ends, and extinction.

The center of human nature is rooted in ten thousand ordinary acts of kindness that define our days.

Always be suspicious of conclusions that reinforce uncritical hope and follow comforting traditions of Western thought.

In science, 'fact' can only mean 'confirmed to such a degree that it would be perverse to withhold provisional assent.' I suppose that apples might start to rise tomorrow, but the possibility does not merit equal time in physics classrooms.

Our current drug crisis is a tragedy born of a phony system of classification. For reasons that are little more than accidents of history, we have divided a group of nonfood substances into two categories: items purchasable for supposed pleasure (such as alcohol), and illicit drugs.

We must [it has been arued] go beyond reductionism to a holistic recognition that biology and culture interpenetrate in an inextricable manner.