最具挑战性的时期往往揭示了转型的最大机遇。
一座伟大的建筑必须触动心灵，而不仅仅是头脑。
You have to believe in yourself when no one else does.
The growth of an enterprise is a process of continuous trial and error.
"The past is a foreign country; they do things differently there."
解释：大部分药材都以新鲜为好，但艾草却以陈年的为佳，体现了药材使用的特殊性。