"The description of right lines and circles, upon which geometry is founded, belongs to mechanics. Geometry does not teach us to draw these lines, but requires them to be drawn."

"I keep the subject constantly before me and wait till the first dawnings open slowly, by little and little, into a full and clear light."

"The greatest challenges to the truth of the Holy Scriptures are not the work of infidels, but of professing Christians."

"For the best and safest way of philosophizing seems to be, first to inquire diligently into the properties of things, and of establishing them by experiment, and then to proceed more slowly to hypothe…"

"God is the same God, always and everywhere."