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.
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.
The true beauty of nature is her amplitude she exists neither for nor because of us, and possesses a staying power that all our nuclear arsenals cannot threaten (much as we can easily destroy our puny selves).
Creationist critics often charge that evolution cannot be tested, and therefore cannot be viewed as a properly scientific subject at all. This claim is rhetorical nonsense.
Facts do not 'speak for themselves', they are read in the light of theory
The most important scientific revolutions all include, as their only common feature, the dethronement of human arrogance from one pedestal after another of previous convictions about our centrality in the cosmos.
We pass through this world but once.
The most erroneous stories are those we think we know best - and therefore never scrutinize or question.
Nothing is more dangerous than a dogmatic worldview - nothing more constraining, more blinding to innovation, more destructive of openness to novelty.
When people learn no tools of judgment and merely follow their hopes, the seeds of political manipulation are sown.
The invalid assumption that correlation implies cause is probably among the two or three most serious and common errors of human reasoning
Science is an integral part of culture. It's not this foreign thing, done by an arcane priesthood. It's one of the glories of the human intellectual tradition.
The fundamentalists, by 'knowing' the answers before they start (examining evolution),and then forcing nature into the straitjacket of their discredited preconceptions, lie outside the domain of science-or of any honest intellectual inquiry.
The proof of evolution lies in those adaptations that arise from improbable foundations.
We pass through this world but once. 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.