If science is to be advanced, all difficulties must be laid open, and we must even search for those that are hidden, for every difficulty calls forth a remedy, which cannot be discovered without science gaining either in extent or in exactness; and thus even obstacles become means of increasing the thoroughness of science.
Jakintza bati lagundu behar bazaio, orduan zailtasun guztiak aurkitu behar dira eta bereziki ezkutuan bidean dituenak bilatu behar dira;