The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom. C - Isaac Asimov

Connotations and associations; the subtle effect, not of dictionary meaning, but of years of usage; the nature of the sentences and conditions and events in which one has experienced the use of one word as compared with that of the other.

No se trataba de un rey, pues no había heredado su cargo ni, por ende, tenía ningún derecho legal o sagrado. Era sencillamente un "amo", nada más. La palabra griega que lo designaba era tyrannos, que se ha convertido en nuestra voz "tirano".

Scientific theories can always be improved and are improved. That is one of the glories of science. It is the authoritarian view of the Universe that is frozen in stone and cannot be changed, so that once it is wrong, it is wrong forever.