No man or woman is worth your tears， and the one who is， won‘t make you cry。

Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.

只要我人在国外,我绝不攻击本国的正辅。等回去我再补回来。

大自然为我们提供了研究生物学的惊人工具；我们只需要知道去哪里寻找。

She was still too young to know that life never gives anything for nothing, and that a price is always exacted for what fate bestows.