And therefore in geometry (which is the only science that it hath pleased God hitherto to bestow on mankind), men begin at settling the significations of their words; which settling of significations, they call definitions, and place them in the beginning of their reckoning.
Thomas HobbesBy how much one man has more experience of things past, than another, by so much also he is more prudent, and his expectations the seldomer fail him.
Thomas Hobbes