臣不能以喻臣之子,臣之子亦不能受之於臣,是以行年七十而老斲輪。古之人與其不可傳也死矣,然則君之所讀者,古人之糟魄已夫。
Source: Wikiquote (CC BY-SA 3.0). Quotations may be subject to their authors' rights and may be shown in translation.