প্রীতিলতা ওয়াদেদ্দার কোন আন্দোলনে অংশ নিয়েছিলেন?
“From each according to his ability, to each according to his needs.” Who states this line?
'Civilization can never sustain itself upon cannibalism of any form. For that by which alone man is true can only be nourished by love and justice." ___How does civilization sustain?