The artist's conception of his art or the scientist's of his science is usually as great as his conception of his own worth is small.
Giacomo LeopardiHe who travels much has this advantage over others – that the things he remembers soon become remote, so that in a short time they acquire the vague and poetical quality which is only given to other things by time. He who has not traveled at all has this disadvantage – that all his memories are of things present somewhere, since the places with which all his memories are concerned are present.
Giacomo LeopardiThe surest way of concealing from others the boundaries of one s own knowledge is not to overstep them.
Giacomo Leopardi