To write is to make one's self a echo of the world's soul.
阅读和解释遗传密码的能力彻底改变了我们对医学和遗传学的方法。
目标不是哀悼失去的未来,而是将它们用作未来斗争的资源。
No one is useless in this world who lightens the burdens of another.