In many environments, take away the ants and there would be partial collapses in many of the land ecosystems.

Progress, then, is a property of the evolution of life as a whole by almost any conceivable intuitive standard.... let us not pretend to deny in our philosophy what we know in our hearts to be true.

The search for knowledge is in our genes. It was put there by our distant ancestors who spread across the world, and it's never going to be quenched.

[T]he true natural sciences lock together in theory and evidence to form the ineradicable technical base of modern civilization. The pseudosciences satisfy personal psychological needs... but lack the ideas or the means to contribute to the technical base.

In science, obsessiveness under psychological control can be a virtue.

Of course, there is no reconciliation between the theory of evolution by natural selection and the traditional religious view of the origin of the human mind.

You teach me, I forget. You show me, I remember. You involve me, I understand.