交作业,

What is happiness? Happiness comes from health, free will, and comfy life, but still find enthusiasm in the tinest part of life. 

如果我带着早晨的翅膀，住在大海的尽头；
即使在那里也要有你的手引导我，你的右手要握住我。
 

When treating patients doctors shall dot the i's and cross the t's on whom lives and health depend.