心如止水的英文：
be at peace with oneself

peace是什么意思：
n. 和平；治安；秩序；和约；平静；和睦

The doctor was at peace.
博士生活得很安宁。

a book the length of `War and Peace'
像《战争与和平》篇幅那样长的书

Be vigilant in peace time.
居安思危。

Peace of the forehead and war in the mind
口蜜腹剑

We are solid for peace.
我们一致拥护和平。

oneself是什么意思：
pron. 自己；亲自，自行

apologize for oneself
为自已解辩或辩护

pride oneself on
使得意

embroil oneself in
使某人卷入纠纷

reassert oneself
重申自己的主张

prostrate oneself
使自己俯卧|拜倒