Over 40,000 Famous Quotes Sorted By Topic and Author

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.

We who revel in nature's diversity and feel instructed by every animal tend to brand Homo sapiens as the greatest catastrophe since the Cretaceous extinction.

A man does not attain the status of Galileo merely because he is persecuted; he must also be right.