Before she was grown into a woman, she had mastered the principia of Newton.
All these discoveries were brought together in that immortal work, Newton's "principia."
The extent of ground and the measurement of the principia left no doubt that the whole was the work of three legions.
It belongs to the First Philosopher to discuss the principia of all.
For sustained reflection and high philosophic thought it is to be ranked with the researches of Newton in the principia.
Few of my readers may have ever read Chaucer; fewer still the principia of Newton.
It was by this continuous application that the principia was accomplished.
When he was eighty-three he published a third edition of the "principia."
Such are some of the gems extracted from their setting in the principia, and presented as clearly as I am able before you.
In 1713 Cotes helped him to bring out a new edition of the principia, completed as we now have it.