Studying arts and sciences makes you soft

Both in that martial government and in all others like it examples show that studying the arts and sciences makes hearths soft and womanish rather than teaching them to be firm and ready for war. The strongest State to make an appearance in our time is that of the Turks; and the Turkish peoples are equally taught to respect arms and to despise learning. I find that Rome was more valiant in the days before she became learned.

Michel de Montaigne - Complete Essays (I, 25)