善意并不是自己内心发出的，不能保留；行为自身不能够理解和辨别的，不能去做。

Space and light and order. Those are the things that men need just as much as they need bread or a place to sleep.

Success is not final, failure is not fatal: It is the courage to continue that counts.

RNA干扰是一个迷人的过程，它为理解基因调控开辟了新的途径，并具有潜在的治疗应用。