Real knowledge, like everything else of value, is not to be obtained easily,

it must be worked for, studied for, thought for, and more than all, must be

prayed for.-- Thomas Arnold

真知如同珍宝，不是轻易获得的，必须学习、钻研、思考，最重要的是必须有强烈的求知欲。

-- 托马斯 · 阿诺德