Ammian. xxv. 2. Julian had sworn in a passion,
numquam se Marti sacra facturum (xxiv. 6).
Such whimsical quarrels were not uncommon between the gods and their insolent votaries; and even the prudent Augustus, after his fleet had been twice shipwrecked, excluded Neptune from the honours of public processions. See Hume's Philosophical Reflections. Essays, vol. ii. p. 418.