“The noblest pleasure is the joy of understanding.” Leonardo da Vinci (1452-1519) “The highest activity a human being can attain is learning for understanding, because to understand is to be free.” Baruch Spinoza (1632-1677) “Understanding can overcome any situation, however mysterious or insurmountable it may appear to be.” Norman Vincent Peale (1898-1993) “Everything that irritates […]