He sent ten thousand pounds to Xenocrates the philosopher, but when Xenocrates would not accept them, and said he had no need of them, Alexander asked whether Xenocrates had not a single friend. ‘For, in my case,’ said he, ‘the wealth of Darius was hardly enough for my friends.’ 1
1 Cf. Moralia, 331 E and 333 B, and Plutarch's Life of Alexander, chap. viii (668 E).