—— 请按键盘 空白键 开始游戏 ——

Legal positivism emphasizes the separation of law and morality.
阅读的习惯是唯一没有掺杂任何杂质的享受;当所有其他乐趣消失时,它依然存在。
The ethical questions raised by CRISPR are not obstacles—they are essential conversations.
Don’t be afraid to ask a question that may sound stupid because 99% of the time everyone else is thinking of the same question and is too embarrassed to ask it.