Science is not a heartless pursuit of objective information. It is a creative human activity, its geniuses acting more as artists than as information processors.

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.

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.

What you see is that the most outstanding feature of life's history is a constant domination by bacteria.

Contrary to current cynicism about past golden ages, the abstraction known as 'the intelligent layperson' does exist - in the form of millions of folks with a passionate commitment to continuous learning.

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.

If I don't make it, I'll be very sad that there are things I didn't do, but I'm happy that I've done what I have.