这句直接回了上段的提问。即使胜出者还是得继续学习，学习哲学这类更难的知识。学习只会带来更多的学习，知识像圆，越多表示越大，也代表未知想知也越大。

切莫让人觉得取得了学位或获得了某种职称，就可以停止学习了，那表示可以向更广阔的领域进发。
They are taught philosophy.
他们将学习哲学。

所在段落

The Story of Philosophy《哲学的故事》第1章Plato第7节VI. The Psychological Solution第13段第1句：

They are taught philosophy. They have now reached the age of thirty; it would not have been wise to let them "taste the dear delight too early; … for you men, when they first get the taste of philosophy in their mouths, argue for amusement, and are always contradicting and refuting, … like puppy-dogs who delight to tear and pull at all who come near them"(539). This dear delight, philosophy, means two things chiefly: to think clearly, which is metaphysics; and to rule wisely, which is politics. First then, our youngElite must learn to think clearly. For that purpose they shall study the doctrine of Ideas.
浙江大学译本：他们被教授哲学。

上句见：Day405