Patience is an important ____ of a happy and rewarding life. After all, some things are worth waiting for. 

After a long day of hard work, my only     is to get back home and have a good sleep. 

In a time of social reform, people’s state of mind tends to keep _______ with the rapid changes of society.

We have phoned her several times, but unfortunately she is still out of        .

He came here without friends or ______and made his fortune.