清洁:身体、衣服及住所,力求整洁。
CLEANLINESS. Tolerate no uncleanliness in body, cloaths, or habitation.
保持好奇心是创新的源泉。
The only limits in life are those you impose on yourself.
要摧毁一种文化,你不必烧书。只要让人们停止阅读它们。