A cubic surface with a triple point (a cubic cone) may or may not be rational.

By the year 2000, American students will leave grades four, eight, and twelve having demonstrated competency in challenging subject matter including English, mathematics, science, history, and geography....

The objections of these speculatists, if its forces do not quadrate with their theories, are as valid against such an old and beneficent government as against the most violent tyranny or the greenest usurpation.

Sericana , where Chineses drive With sails and wind their cany waggons light