Science arose from poetry... when times change the two can meet again on a higher level as friends.

It is in self-limitation that a master first shows himself.

Science and art belong to the whole world, and before them vanish the barriers of nationality. [Ger., Wissenschaft und Kunst gehoren der Welt an, und vor ihhen verschwinden die Schranken der Nationalitat.]

Science and art belong to the whole world, and before them vanish the barriers of nationality

All truly wise thoughts have been thought already thousands of times; but to make them truly ours, we must think them over again honestly, till they take root in our personal experience.

Only people unable to produce anything themselves feel there is nothing there.