無知者無愛。無為者不明。不明者無用。明者愛、察、見。……知之深則愛之切。……以諸果皆熟同莓時者，不知葡也。（帕拉塞爾蘇斯【譯註：十五、十六世紀文藝復興時期德國和瑞士籍醫生、植物學家、鍊金術家、占星術家和神秘學家。】）

原文：

He who knows nothing, loves nothing. He who can do nothing understands nothing. He who understands nothing is worthless. But he who understands also loves, notices, sees. ... The more knowledge is inherently in a thing, the greater the love. ... Anyone who imagines that all fruits ripen at the same time as strawberries knows nothing about grapes.  (Paracelsus)