The analysis of concepts is for the understanding nothing more than what the magnifying glass is for sight
Moses MendelssohnThe principal axiom in their theory was: Everything can be proved, and everything can be disproved; and in the process, one must profit as much from the folly of others, and from his own superiority, as he can.
Moses MendelssohnWe would be able neither to remember nor to reflect nor to compare nor to think, indeed, we would not even be the person who we were a moment ago, if our concepts were divided among many and were not to be encountered somewhere together in their most exact combination.
Moses Mendelssohn