Analysis of information sources in references of the Wikipedia article "پییرو سرافا" in Persian language version.
Sraffa liked walks and bike rides. In Cambridge, he always moved around by bike. He used to get up late in the morning and work late into the night. In Trinity as well as when associated with King's, he regularly dined in the college. As I noticed when he invited me to dinner at Trinity, he took care to arrive after supper was served, so as to skip the benedicite prayer (he was agnostic, with a leaning for atheism).