قال شوبنهور في وصف كتاب "العالم كارادة وفكرة"

“by and large the poor have the same impulses as the rich, with only less opport…”

“Every science begins as philosophy and ends as art; it arises in hypothesis and…”

“Civilization exists by geological consent, subject to change without notice. ”

“إن الفلسفة تبدأ عندما يبدأ الإنسان يتعلم الشك، وخصوصاً الشك في المعتقدات التي يح…”