Michael Steinhardt pioneered hedge fund management and strategic trading at Steinhardt Partners, retiring in 1995 with an unmatchable compound average annual return of 24 percent over 28 years. From there, what new worlds were left to conquer? Mr. Steinhardt became one of New York’s leading philanthropists. He donated $20 million to New York University to establish the Steinhardt School of Culture, Education and Human Development. He has given away an estimated $125 million to Jewish causes. He co-founded Taglit-Birthright Israel, which has sent 220,000 young adults on trips to the Holy Land. A leading collector and preserver of art and antiquities, Mr. Steinhardt has one of the world’s greatest Judaica collections; he regularly loans out pieces to museums. Mr. Steinhardt is an earnest man. Though possessing strong opinions, he is not preaching or promoting. Reading about his activities, his Steinhardt Foundation for Jewish Life or from his self-deprecating autobiography, No Bull, you see that in his attempts to help others learn what it means to be Jewish, he is also learning for himself.