实现不可能的唯一方法是相信它是可能的。
I don't have time to worry about who doesn't like me.
元素若按其原子量排列,会呈现出性质的周期性。
The environment is where we all meet; where we all have a mutual interest; it is the one thing all of us share.
写作是理解混乱的一种方式。