I concluded that I might take as a general rule the principle that all things which we very clearly and obviously conceive are true: only observing, however, that there is some difficulty in rightly determining the objects which we distinctly conceive.
I accept no principles of physics which are not also accepted in mathematics.
I hope that posterity will judge me kindly, not only as to the things which I have explained, but also to those which I have intentionally omitted so as to leave to others the pleasure of discovery.
Give me extension and motion and I will construct the universe.
Perfect numbers like perfect men are very rare.
With me, everything turns into mathematics.
The two operations of our understanding, intuition and deduction, on which alone we have said we must rely in the acquisition of knowledge.
Mathematics is a more powerful instrument of knowledge than any other that has been bequeathed to us by human agency.