The ethical questions raised by CRISPR are not obstacles—they are essential conversations.
太阳,带着所有围绕它运行并依赖它的行星,仍然能像在宇宙中没有其他事情可做一样,使一串葡萄成熟。
People of the same trade seldom meet together, even for merriment and diversion, but the conversation ends in a conspiracy against the public, or in some contrivance to raise prices.
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
The international system is inherently competitive, and states are constantly trying to outmaneuver each other.
Confidence is not innate, it is cultivated slowly.