译文：青春容易逝去，学问却很难获得成功，所以每一寸光阴都不能轻易放过。赏析：生命短暂，学问却无穷尽，我们要在有限的生命里去追求高深的学问。不要待到岁月逝去时，才后悔莫及。

Man's survival, from the time of Adam and Eve until the invention of agriculture, must have been precarious because of his inability to ensure his food supply.

"We are all haunted by the ghosts of our past, but it's up to us whether we let them haunt us or guide us."

解释：大部分茶都是寒性的，而绿茶却是温性的，体现了茶性质的差异。