No More Learning

And ’tis nothing to the purpose for me to
say, that perhaps this _Idea_ of a Triangle came to me by the Organs of
_sense_, because I have sometimes seen bodies of a           Shape_;
for I can think of Innumerable other _Figures_, which I cannot suspect
to have come in through my _senses_, and yet I can _Demonstrate_ various
_properties_ of them, as well as of a _Triangle_, which certainly are all
_true_, seeing I know them _clearly_, and therefore they are _something_,
and not a meer _Nothing_, for ’tis Evident that _what is true is
something_.