"Paul Erdos has a theory that God has a book containing all the theorems of mathematics with their absolutely most beautiful proofs, and when he wants to express particular appreciation of a proof he exclaims, "This is from the book!""

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The greatest gift . . . is the realization that life does not consist either of wallowing in the past or of peering anxiously at the future; and it is appalling to contemplate the great number of often painful steps by which one arrives at a truth so old, so obvious, and so frequently expressed. It is good for one to appreciate that life is now. Whatever it offers, little or much, life is now-this day-this hour.

— Charles Macomb Flandrau